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

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  Stormclouds roll into NASA's Kennedy Space Center on the evening of May 29th, 2020 as xenon lights illuminate historic pad 39A. [credit: Trevor Mahlmann ]

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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