Sunday, May 31

If This Is Your Inspiration From Space, You’re Doing It Wrong

So after a false start due to bad weather, the first manned launch of a SpaceX Crew Dragon capsule with two astronauts on board has gone ahead. After playing catch-up with the ISS for around 27 hours they’re now safely aboard. At times it seems that space launches have become everyday occurrences, but they are still heroes who have risked their lives in the furtherment of mankind’s exploration of space. Their achievement, and that of all the scientists, engineers, and other staff who stand behind them, is immense.

I watched the drama unfold via the live video feed. Having heaved a huge sigh of relief once they were safely in orbit, the feed cut to the studio, and then moved on to interview the NASA administrator Jim Bridenstine. He was naturally elated at a successful launch, and enthused about the agency’s achievement. You can watch the full interview embedded below, but what caught my attention was his parting sentence:

And if this can inspire a young child to become the next Elon Musk, or the next Jeff Bezos, or the next Sir Richard Branson, then that’s what this is all about

I was slightly shocked and saddened to hear this from the NASA administrator, because to my mind the careers of Musk, Bezos, or Branson should not be the ones first brought to mind by a space launch. This isn’t a comment on those three in themselves; although they have many critics it is undeniable that they have each through their respective space companies brought much to the world of space flight. Instead it’s a comment on what a NASA administrator should be trying to inspire in kids.

Ask yourself how many billionaire masters-of-the-universe it takes for a successful space race compared to the number of scientists, engineers, mathematicians, technicians, physicists, et al. From the anecdote of the NASA administrator it takes about three, but if he is to make good on his goal of returning to the Moon in 2024 and then eventually taking humanity to Mars it will take a generation packed full of those other roles. To understand that we’ll have to take a trip back to the Apollo era, and how that generation of kids were inspired by the spacecraft on their screens.

Inspiration from probably the coolest room in the world at the time, the Apollo mission control in Houston.
Inspiration from probably the coolest room in the world at the time, the Apollo mission control in Houston. NASA on The Commons / No restrictions

Fifty years ago, we were very much on the brink of becoming a spacefaring planet. American astronauts were taking their first steps on the Moon, and Soviet cosmonauts were occupying real space stations that would soon be capable of housing them for months at a time. Planetary probes were returning colour TV pictures from other worlds, and it was certain that in the immediate aftermath of the Apollo programme we’d be sending astronauts and probably cosmonauts too further afield. A Mars base in the 1980s perhaps, and following our fictional Star Trek heroes further afield thereafter.

We now know it didn’t quite work out that way, but a whole generation of tech-inclined kids grew up wanting nothing more than to be involved in space flight. The vast majority of us never made it, but with that inspiration we took our soldering irons and 8-bit home computers and ran with them. Those NASA folks were the coolest of role-models, and no doubt their Soviet equivalents were too for kids on the other side of the Iron Curtain.

With the best will in the world, the chances of any kid becoming the next Jeff Bezos is about as high as that of their becoming the next Neil Armstrong. Compared to the number of kids in the world, the number of billionaires and the number of astronauts both pale into statistical insignificance. But the chances of a kid becoming an engineer or a scientist is much higher, and in those careers their chances of having some of their work be involved with the space effort becomes not entirely unlikely.

I understand what the NASA administrator was trying to say, but can’t shake the feeling that if those are the people he rolls out to inspire kids watching a space launch, he’s missed an opportunity. Those are the names we all recognize, but shouldn’t we also elevate the people making the scientific breakthroughs so their names are equally recognized? Like Margaret Hamilton, Gene Kranz, and Sergei Korolev and many others before them, we should be making names like Tom Mueller and Margarita Marinova prominent examples of where a career in the sciences can take you. But to be honest, the real problem is we just don’t hear much about all the people doing this fascinating engineering and that’s a sad state of affairs.

Looks like it’s time for Hackaday to pursue a biography series based on the many great minds who are the ones delivering on the promise and vision of today’s (and tomorrow’s) space race. Get us started by talking about your favorite behind the scenes science folks in the comments below.

Homebrew Binaural Microphone Lets You Listen Like a Human

We humans may not have superpowers, but the sensor suite we have is still pretty impressive. We have binocular vision that autofocuses and can detect a single photon, skin studded with sensors for touch, heat, and pain, and a sense of smell that can detect chemicals down to the parts per trillion range. Our sense of hearing is pretty powerful, too, allowing us to not only hear sounds over a 140 dB range, but also to locate its source with a fair degree of precision, thanks to the pair of ears on our heads.

Recreating that binaural audio capture ability is the idea behind this homebrew 3D microphone. Commercially available dummy head microphones are firmly out of the price range of [LeoMakes] and most mortals, so his was built on a budget from a foam mannequin head and precast silicone rubber ears, which you can buy off the shelf, because of course you can.

Attached to the sides of the foam head once it got the [Van Gogh] treatment, the ears funnel sound to tiny electret cartridge microphones. [Leo] learned the hard way that these little capsule mics can’t use the 48-volt phantom power that’s traditionally pumped up the cable to studio microphones; he fixed that problem with a resistor in parallel with the mic leads. A filtering capacitor, an RC network between the cold line and ground on the balanced audio line, and a shield cleverly fashioned from desoldering braid took care of the RF noise problem.

The video after the break shows the build and test results, which are pretty convincing with headphones on. If you want to build your own but need to learn more about balanced audio and phantom power, we’ve got a short primer on the topic that might help.

Good podcast vibes for the nerdy set: Our recent faves in science, research

Photos of people relaxing while listening to headphones have been superimposed on the image of a galaxy.

Enlarge / Ars' creative director Aurich Lawson describes this image as: "good vibes, friends, and listening to the reaches of space." We like to think that fits well with our latest podcast recommendations. (credit: Aurich Lawson / Getty Images)

In some ways, podcasts are among the most quarantine-proof forms of entertainment right now. Maybe some bigger hosts have been forced to move their microphones and wall padding to a home office, or they're now hiding in closets for better sound quality (but not as an anxious reaction to terrifying and confusing news headlines).

But that doesn't mean all podcasts currently in production are a perfect fit for a nerd's listening diet, whether because they're too flippant or too doom-and-gloom. In my case, at least, I seek a mix of emotional support, comfort, and normalcy in my regular podcast library. Hence, I'm recommending the five podcasts below as my favorites if you're looking for that much-needed connection to the outside world. (These are in addition to other podcasts I've previously recommended at Ars.)

My latest selections tell uplifting stories; they feature friends talking about things they love; and while they've had to adapt to keep their hosts safe from COVID-19, they've held onto the joy and optimism that drew me to them in the first place. All of these podcasts have new, regularly updated episodes in common, and all of them revolve around research and science.

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Electrifying West Africa with a renewable grid

Image of a dam and generating building.

Enlarge / A new hydroelectric power station in the Ivory Coast. (credit: Xinhua News Agency)

There's been a lot of discussion about how areas that are seeing explosive renewable growth can manage the large amount of intermittent electricity sources. But these mostly focus on regions with mature electric grids and a relatively static growth in demand. What would happen if you tried to grow renewables at the same time you're trying to grow a grid?

A EU-US team of researchers decided to find out what a good renewable policy might look like in West Africa, an area similar in size to the 48 contiguous US states but comprised of 16 different countries. Some of these nations already get a sizable chunk of their power from renewables in the form of hydropower, but they are expected to see demand roughly double in the next decade. Although renewables like solar and wind are likely to play a role purely based on their price, the researchers' analysis suggests that a smart, international grid can balance hydro, wind, and solar to produce a far greener grid.

Hydro as a giant battery

The new work has a mix of focuses. It's run against the backdrop of the expectation that West Africa's demand for electricity will explode over the next decade. Right now, the region has nearly 400 million inhabitants who consume a bit over 100 terawatt-hours a year (compared to the United States' 4,000TW-hr). By 2030, that demand is expected to be more than 200TW-hr—a fourfold increase from where demand was in 2015.

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Can we save the night sky from satellite streaks?

The solar eclipse and ISS transit back in August of 2017.

Enlarge / The solar eclipse and ISS transit back in August of 2017. (credit: Trevor Mahlmann)

As much of the world has slowed down amid COVID-19, the same cannot be said for the burgeoning small satellite broadband industry. In recent weeks, SpaceX CEO Elon Musk announced he hopes to move the company’s Starlink broadband service to public beta in about six months. And that very same day, the Federal Communications Commission unanimously approved new rules for preventing orbital debris and collisions in space (those rules have been revised so as to not hamper NASA, but they still require more analysis, tracking, and disclosure from satellite companies). It's a small snapshot of what's been an ongoing debate: astronomy advocates say we are running out of time to preserve pristine views in the night sky, companies sending satellite constellations into space say they are mitigating the threat their satellites could pose to skywatchers.

The fleets of low-cost satellites will certainly be beneficial for telecommunications and Earth observation customers, particularly those living in remote areas. Crowds of satellites decrease the "revisit time" between satellite passes and make it easier to stay in touch, or to get frequent images during natural disasters.

Yet astronomers warn that without care, the satellites could ruin science observations and also make it difficult for groups like Native Americans who see the sky as part of their culture. Space organizations in Europe and the United States are already sounding alarm bells in reports and press releases. The European Southern Observatory (which operates the Very Large Telescope in Chile, among others) recently warned their observatories would be "moderately affected" if constellations launch at current rates. The National Science Foundation's Vera C. Rubin Observatory in northern Chile said nearly every image obtained during twilight "would be affected by at least one satellite trail."

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The Descendants of Ancient Computers

Building computers from discrete components is a fairly common hobby project, but it used to be the only way to build a computer until integrated circuits came on the scene. If you’re living in the modern times, however, you can get a computer like this running easily enough, but if you want to dive deep into high performance you’ll need to understand how those components work on a fundamental level.

[Tim] and [Yann] have been working on replicating circuitry found in the CDC6600, the first Cray supercomputer built in the 1960s. Part of what made this computer remarkable was its insane (for the time) clock speed of 10 MHz. This was achieved by using bipolar junction transistors (BJTs) that were capable of switching much more quickly than typical transistors, and by making sure that the support circuitry of resistors and capacitors were tuned to get everything working as efficiently as possible.

The duo found that not only are the BJTs used in the original Cray supercomputer long out of production, but the successors to those transistors are also out of production. Luckily they were able to find one that meets their needs, but it doesn’t seem like there is much demand for a BJT with these characteristics anymore.

[Tim] also posted an interesting discussion about some other methods of speeding up circuitry like this, namely by using reach-through capacitors and Baker clamps. It’s worth a read in its own right, but if you want to see some highlights be sure to check out this 16-bit computer built from individual transistors.

Walmart employees are out to show its anti-shoplifting AI doesn’t work

Customers and staff cluster around grocery store self-check lane.

Enlarge (credit: Roberto Machado Noa | Getty Images)

In January, my coworker received a peculiar email. The message, which she forwarded to me, was from a handful of corporate Walmart employees calling themselves the “Concerned Home Office Associates.” (Walmart’s headquarters in Bentonville, Arkansas, is often referred to as the Home Office.) While it’s not unusual for journalists to receive anonymous tips, they don’t usually come with their own slickly produced videos.

The employees said they were “past their breaking point” with Everseen, a small artificial intelligence firm based in Cork, Ireland, whose technology Walmart began using in 2017. Walmart uses Everseen in thousands of stores to prevent shoplifting at registers and self-checkout kiosks. But the workers claimed it misidentified innocuous behavior as theft and often failed to stop actual instances of stealing.

They told WIRED they were dismayed that their employer—one of the largest retailers in the world—was relying on AI they believed was flawed. One worker said that the technology was sometimes even referred to internally as “NeverSeen” because of its frequent mistakes. WIRED granted the employees anonymity because they are not authorized to speak to the press.

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Digitize An Analogue Oscilloscope

Many of us will possess digital oscilloscopes which offer at an affordable price an array of features once unimaginable on the analogue CRT ‘scopes of yesteryear. But those old analogue beasts were fine pieces of equipment when they were made and remain so today. So how can they find a place in the digital age?

Perhaps [Joseph Eoff] has the answer, because he’s fitted his trusty Telequipment D43 with a camera in a 3D-printed attachment, paired with a piece of cross-platform Python/Qt custom software using OpenCV to identify, digitize, and quantify the traces. The software allows viewing the either the digitized trace or the real trace, and derives measurements of voltage and frequency from them. One limitation is that despite the ‘scope being a dual-trace model, the software only has a single set of cursors to measure one trace at a time. All the code can be had from the GitHub repository, should you wish to experiment with it or extend it.

It’s worth thinking for a minute at what price point a remotely decent digital ‘scope starts, then considering the ease with which surprisingly good older analogue instruments can be found on the second-hand market for not a lot. An approach such as this one makes them an even more attractive proposition.

If you’re looking further into enhancements for an analogue ‘scope, how about a logic analyser?

A Tasty Output Device

We have headphones for your ears, and monitors for your eyes. Some computers even have tactile feedback. Now researchers have an output device for taste. The decidedly odd device uses five gels, one for each of the tastes humans can sense. If we understand the paper, the trick is that ionizing the gels inhibits the taste of that gel. By controlling the ionization level of each gel, you can synthesize any taste, just like you can make colors with three LEDs.

The five gels are made from agar and glycine (sweet), magnesium chloride (bitter), citric acid (acidic), salt (salty), and glutamic sodium (umami). If you didn’t learn about umami in school, that’s a savory taste likened to the taste of a broth or meat and often associated with monosodium glutamate.

The shape of the device is made like a sushi roll so that while the gels contact the tongue, a copper foil cathode can connect also. Using this will make you look even stranger than someone wearing Google Glass, but that’s the price of being on the cutting edge of technology, we suppose. There doesn’t seem to be any reason you couldn’t duplicate something like this, although we wonder about the hygiene of passing it around at parties. Maybe your next home movie could show a meal and let the viewer taste it too.

If you are wondering about smell, that’s another set of researchers. You would think this is the first taste output device we have seen, but no… surprisingly, it isn’t.

Swap Your Microwave for a High Voltage Stereo

When building a new project, common wisdom suggests to avoid “reinventing the wheel”, or doing something simple from scratch that’s easily available already. However, if you can build a high-voltage wheel, so to speak, it might be fun just to see what happens. [Dan] decided to reinvent not the wheel, but the speaker, and instead of any conventional build he decided to make one with parts from a microwave and over 6,000 volts.

The circuit he constructed works essentially like a Tesla coil with a modulated audio signal as an input. The build uses the high voltage transformer from the microwave too, which steps the 240 V input up to around 6 kV. To modulate that kind of voltage, [Dan] sends the audio signal through a GU81M vacuum tube with the support of a fleet of high voltage capacitors. The antenna connected to the magnetron does tend to catch on fire somewhere in the middle of each song, so it’s not the safest device around even if the high voltage can be handled properly, but it does work better than expected as a speaker.

If you want a high-voltage speaker that (probably) won’t burn your house down, though, it might be best to stick to a typical Tesla coil. No promises though, since working with high voltages typically doesn’t come with safety guarantees.

Thanks to [David] for the tip!

“The trampoline is working”—SpaceX returns human spaceflight to America

The rain showers ended. The clouds parted. And so on Saturday afternoon, SpaceX's Falcon 9 rocket had blue skies above it during the final minutes of a countdown to launch from Kennedy Space Center in Florida.

The Falcon 9 rocket had launched 84 times before. In fact, no U.S. rocket now flying has launched as much as the Falcon 9 rocket. So, this was all kind of routine in that sense. But for the first time, the Falcon 9 rocket carried two humans on board, inside a Crew Dragon spacecraft. That changed everything.

So much was at stake, the immensity of this almost became too much to bear as the clock ticked down.

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This Old Console Stereo Hides A Liquor Cabinet

There was a time when consumer electronics were statement items, designed to resemble quality furniture that would be shown off as a centerpiece of the home. Televisions in ornate wooden cabinets, or stereos looking for all the world like sideboards. [Zethus] had just such a huge record player and radio combo in a sideboard, and having little use for the cream of 1950s home entertainment technology, he rebuilt it as a concealed liquor cabinet with electronic controls and a much more modern stereo that forms part of a Logitech Media Server multi-room system.

After removing the tube-based radio chassis and Garrard jockey-wheel turntable it was time to gut their supporting woodwork and install the platform derived from a standing desk. With suitably impressive lighting and a pair of VFD displays for the music choice, there is the inevitable Raspberry Pi running the show. Control is achieved by a set of hidden capacitive buttons, and there’s a Web interface to allow both music and magical appearance of alcohol from the comfort of a smartphone. The whole can be seen in the video below the break.

Whenever a piece of vintage electronics is gutted in this way there will always be people who find it disquieting, but the truth is that these all-in-one stereos were made in huge quantities during the mid-century period and do not have a significant value. This one may have lost its original electronics, but it lives on safe from the dump that has claimed so many of its brethren. Happily this isn’t the first one we’ve seen saved with a Pi.

Saturday, May 30

Study: classic Hollywood’s studio system gave rise to sharp gender disparity

Olivia de Havilland—pictured here as Melanie Hamliton in the 1939 Oscar-Winning film <em>Gone with the Wind</em>—successfully sued Warner Bros. in 1943 to free herself from her studio contract. The groundbreaking lawsuit contributed to the breakup of the Hollywood studio system.

Enlarge / Olivia de Havilland—pictured here as Melanie Hamliton in the 1939 Oscar-Winning film Gone with the Wind—successfully sued Warner Bros. in 1943 to free herself from her studio contract. The groundbreaking lawsuit contributed to the breakup of the Hollywood studio system. (credit: YouTube/MGM)

The so-called Golden Age of Hollywood produced some of the most memorable films ever made, from 1927's The Jazz Singer to Gone With the Wind (1939) and Citizen Kane (1941). But it wasn't so golden for women in the film industry, according to a recent paper published in PLOS One that analyzed a century's worth of data and concluded that the rise of the infamous studio system produced severe gender inequality. Female representation started rising again in the 1950s, after two pivotal lawsuits effectively broke the studios' stranglehold on the industry.

Lead author Luis Amaral, of Northwestern University, is a physicist by training, specializing in the study of complex systems. This latest work builds on a 2015 study that he co-authored, examining correlations between production budget, box office gross, and total number of user votes for films on the Internet Movie Database (IMDB). That study concluded that the total number of IMDB votes was a strong indicator of a given film's prominence or notability.

Three years ago, co-author Murielle Dunande, then a high school student spending her summer break in Amaral's lab, proposed a study of the representation of women in the movies. Initially, she focused on films in the 1960s, but Amaral thought it would be interesting to go back to the birth of the film industry to better understand the historical origins of the gender disparity.

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DMCA vs Hacker

This week featured a large kerfuffle over a hack that you probably read about here on Hackaday: [Neutrino] wedged an OLED screen and an ESP32 into a Casio calculator. REACT, an anti-counterfeiting organization, filed DMCA copyright takedowns on Casio’s behalf everywhere, including GitHub and YouTube, and every trace of [Neutrino]’s project was scrubbed from the Internet.

The DMCA is an interesting piece of legislation. It’s been used to prevent people from working on their tractors, from refilling printer ink cartridges, and to silence dissenting opinions, but it’s also what allows us to have the Internet that we know and love, in a sense.

In particular, the “safe harbor” provision absolves online platforms like YouTube and GitHub from liability for content they host, so long as they remove it when someone makes a copyright claim on it. So if a content owner, say Casio, issues a takedown notice for [Neutrino]’s GitHub and YouTube content, they have to comply. If he believes the request to be made in error, [Neutrino] can then file a counter-notice. After ten to fourteen days, presuming no formal legal action has been taken, the content must be reinstated. (See Section 512(g).)

cardboard cnc machineBoth the takedown notice and counter-notice are binding legal documents, sworn under oath of perjury. Notices and counter-notices can be used or abused, and copyright law is famously full of grey zones. The nice thing about GitHub is that they publish all DMCA notices and counter-notices they receive, so here it is for you to judge yourself.

Because of the perjury ramifications, we can’t say that the folks at REACT who filed the takedown knowingly submitted a bogus request in bad faith — that would be accusing them of breaking federal law — but we can certainly say that it looks like they’re far off base here. They’re certainly not coders.

The good news is that the code is back up on GitHub, but oddly enough the video describing the hack is still missing on YouTube.

But here’s how this looks for Casio and REACT: they saw something that was unflattering to a product of theirs — that it could be used for cheating in school — and they sent in the legal attack squad. If that’s the case, that’s rotten.

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Build Your Own Dial-Up ISP – Now With Modem Pool!

When it was the only viable option, the screech and squeal of dial-up internet was an unwelcome headache to many. But now that its time has passed, it’s gained a certain nostalgia that endears it to the technophiles of today. [Doge Microsystems] is just one such person, who has gone all out to develop their very own dial-up ISP for multiple clients.

The retro network is based on an earlier single-device experiment, with a Raspberry Pi 3B acting as the dial-up server. It’s hooked up to four modems, three of which are connected over USB-serial adapters implementing hardware flow control.

Obviously, four analog phone lines are hard to come by in this day and age, so [Doge] uses Asterisk along with a series of Linksys SIP devices to create their own PBX network.  Each modem gets a phone line, with four left over for clients to dial in.

To connect, users can either call a certain modem directly, or dial a special number which rings the whole pool. Thanks to mgetty, each modem is set up to answer on a different number of rings to allow the load to be shared. Once connected, a PPP daemon handles connecting the user to the Internet at large.

While it’s unlikely we’ll all be ringing [Doge]’s house to get our next YouTube fix, owning your own dial-up ISP is certainly an admirable feat. We’d love to see it deployed in the field sometime, perhaps at a hacker conference or Burning Man-type event. Of course, if you’ve got your own old-school network pumping data, be sure to let us know! Video after the break.

An advanced and unconventional hack is targeting industrial firms

A large amount of zeroes and ones.

Enlarge / Binary code, illustration. (credit: KTSDESIGN/SCIENCE PHOTO LIBRARY / Getty Images)

Attackers are putting considerable skill and effort into penetrating industrial companies in multiple countries, with hacks that use multiple evasion mechanisms, an innovative encryption scheme, and exploits that are customized for each target with pinpoint accuracy.

The attacks begin with emails that are customized for each target, a researcher at security firm Kaspersky Lab reported this week. For the exploit to trigger, the language in the email must match the localization of the target’s operating system. For example, in the case of an attack on a Japanese company, the text of the email and an attached Microsoft Office document containing a malicious macro had to be written in Japanese. Also required: an encrypted malware module could be decrypted only when the OS had a Japanese localization as well.

Recipients who click on a request to urgently enable the document’s active content will see no indication anything is amiss. Behind the scenes, however, a macro executes a Powershell script. The reason it stays hidden: the command parameters:

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Spacing Out; All the Orbital News You’re Missing

We keep finding more great space stories than we can cover, so here’s a speed-run through the broader picture of the moment as it applies to space flight.

The big news this week was the first launch of a manned SpaceX Crew Dragon capsule to the ISS. I was excited because the pass en route to the space station was scheduled to be visible from the UK at dusk, and on Wednesday evening I perched atop a nearby hill staring intently at the horizon. Except it had been cancelled due to bad weather. The next launch window is planned for today and you can watch it live.

Meanwhile, fashion is the other piece of this manned-launch’s appeal. Their sharply-designed spacesuits have attracted a lot of attention, moving on from the bulky functional Michelin Man aesthetic of previous NASA and Roscosmos garments for a positively futuristic look that wouldn’t be out of place in Star Trek. Never mind that the two astronauts are more seasoned space dog than catwalk model, they still look pretty cool to us. Against the backdrop of a political upheaval at the top of NASA, this first crewed orbital mission from American soil since the retirement of the Shuttle has assumed an importance much greater than might be expected from a run-of-the-mill spaceflight.

While we’re on the subject of the ISS, it’s worth noting that we’re approaching twenty years since the first crew took up residence there, and it has been continuously crewed ever since as an off-planet outpost. This is an astounding achievement for all the engineers, scientists, and crews involved, and though space launches perhaps don’t have the magic they had five decades ago it’s still an awe-inspiring sight to see a man-made object big enough to discern its shape pass over in the night sky. We understand that current plans are to retain the station until at least 2030, so it’s a sight that should remain with us for a while longer.

Closer to Earth are a couple of tests for relative newcomers to the skies. When Richard Branson’s Virgin group isn’t trying to boot millionaires off the planet through its Virgin Galactic operation, it’s aiming to cheaply fling small satellites into orbit from a rocket-toting airborne Boeing 747 with its Virgin Orbit subsidiary. Their first test launch sadly didn’t make it to space, once the rocket had flawlessly launched from the airliner it suffered a fault and the mission had to be aborted. Getting into space is hard.

The second test was never intended to make it into space, but is no less noteworthy. The British company Skyrora have performed a successful ground test of their Skylark L rocket, aiming for a first launch next year and for offering low-earth orbit services by 2023. This is significant because it will be the first British launch since the ill-fated Black Arrow launch in 1971, and with their Scottish launch site the first ever from British soil. If you’ve seen Skyrora mentioned here before, it is because they were behind the retrieval of the Black Arrow wreckage from the Aussie outback that we mentioned when we wrote about that programme.

Looking forward to the coming week, especially today’s rescheduled SpaceX launch. This time however, I’ll check the weather conditions before climbing any hills.

Today’s the day— weather permitting, America is returning to space

After nine years without a human launch from Florida, it's about damn time, isn't it?

During Wednesday's technically smooth countdown, NASA astronauts Doug Hurley and Bob Behnken came within 17 minutes of launching before a scrub due to poor weather. Now the crew will suit up and try again on Saturday despite still iffy weather.

SpaceX is working toward an instantaneous launch at 3:22pm ET (19:22 UTC). The big concern again today is the development of thunderstorms near the launch site this afternoon, which could violate a number of weather criteria, including not just precipitation, but also residual electric energy from lighting in the atmosphere. Overall, the chance of acceptable weather at launch time is about 50 percent, forecasters estimate. They are also watching for down-range conditions in case an emergency abort is required during the rocket's ascent to space.

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The Vast of Night is an alien encounter film like no other

The official trailer for Amazon's The Vast of Night.

AUSTIN, Texas—Everyone kinda, sorta knows the story of The Vast of Night before they even hear of this movie. Filmmaker Andrew Patterson readily admits he partially based his debut feature on a real-life event—the 1965 Kecksburg incident—and even the initial idea that led him to researching Kecksburg struck Patterson as familiar. “I have a document in my phone of three or four dozen single line movie ideas,” he told Ars. “This one said, ‘1950s, black and white, New Mexico, UFO film.’”

But The Vast of Night ultimately doesn’t hinge on how its plot plays out. This small budget, tightly scoped sci-fi film has wowed festival audiences enough to attract Amazon money largely on its spectacle—individual images you’d gladly frame for the office wall, dialogue that draws you in no matter the subject, sonic flourishes that stick with you long after the credits roll. Talking to the filmmaker after a recent Fantastic Fest screening, it becomes hard to shake the feeling he’ll be managing a much larger studio budget of his choosing in the very near future.

“We knew we were working in a genre that was shop-worn, nothing new,” Patterson says. “We wanted to let people know, ‘OK this is an abduction in New Mexico—we know this story, you know this story. How can we find a way in and do something special, to make something new?' I wanted to make it like the films I enjoy, which are usually about people learning about each other, their dynamics and relationships. So, OK, I want to start this like it’s a Richard Linklater movie… then we get side-swiped into something extraordinary.”

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Everyone’s ordering delivery, but apps aren’t making money

Two Uber Eats delivery courier wait outside Mc Donalds fast food in Ghent, Belgium on May 14, 2020. As Belgium takes steps in easing Restrictions, Restaurant and cafe are not allowed to open to customers only fast food and take away is allowed. restaurants and restaurants may not reopen before June 8. (Photo by Jonathan Raa/NurPhoto via Getty Images)

Enlarge / Two Uber Eats delivery courier wait outside Mc Donalds fast food in Ghent, Belgium on May 14, 2020. As Belgium takes steps in easing Restrictions, Restaurant and cafe are not allowed to open to customers only fast food and take away is allowed. restaurants and restaurants may not reopen before June 8. (Photo by Jonathan Raa/NurPhoto via Getty Images) (credit: Getty Images)

When Luke Edwards opened OH Pizza & Brew in 2014, the Columbus, Ohio, restaurateur thought delivery apps could help his business. His chicken wings and specialty pizzas—the most popular and appropriately named “Bypass,” topped with pepperoni, sausage, ham, salami, bacon, and extra cheese—needed an audience. And he says working with apps such as DoorDash, Grubhub, Postmates, and Canada’s SkipTheDishes helped him build a loyal following, allowing him to open two more OH Pizza & Brews, with another location on the way.

But by January 2019, Edwards had had enough. For one, he didn’t think the services were helping his bottom line. “Even though we were bringing in more money, after paying out the commission rates, we were seeing a decrease in net profits,” he says. The drivers were inconsistent, he reports, and sometimes lacked equipment like insulated food bags to keep deliveries warm. Edwards also found it harder to get in touch with customer service reps for the apps, who would sometimes refund customers at the eatery's expense for deliveries he believed had gone well.

“Quickly, I realized [the apps] were good at the search and optimization thing,” he adds. “They were terrible at delivery.” Today, OH Pizza & Brew pays its own contracted drivers to deliver, which Edwards believes saves him money.

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