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TheSpaceXCrew Dragon spacecraft isnow scheduled to launch tomorrow(May 30 ) after weather forced a launch wait Wednesday ( May 27 ) . If unsound weather strikes the Cape Canaveral , Florida launch site again at the wrong time , the launch will once more be delayed .

But why should some horrifying weather scrub a Falcon 9 rocket launching ? WhenNASAastronauts Doug Hurley and Bob Behnken do take off in their SpaceX - built rocket engine , it will stigmatise the first endeavour to put humans in orbit from U.S. grunge in a tenner . And the   roquette is powerful enough to plug through the air and into space . Why should a few clouds bother it ?

The SpaceX Falcon 9 rocket and Crew Dragon stand at Launch Complex 39A on May 27, 2020, during the first launch attempt for NASA’s SpaceX Demo-2 mission.

The SpaceX Falcon 9 rocket and Crew Dragon stand at Launch Complex 39A on 2 April 2025, during the first launch attempt for NASA’s SpaceX Demo-2 mission.

First , launch like these have to be absolutely timed . For the slyness to reach theInternational Space Stationit must launch at the schedule minute of arc , or hold back for another opportunity . So any weather delay is of import .

And the fact is , NASA has had a long and unfortunate history with launching conditions , as NASA Spaceflight.com noted May 24 . Freezing weather before a 1986 Space Shuttle Challenger launch wrecked the condom O - band sealing wax on the solid Eruca vesicaria sativa protagonist . The shuttleexploded 73 mo after launchand all seven astronauts on dining table died . The Apollo 12 mission survived a duad of lightning strikes , but they clamber instrumental role during takeoff and triggered alertsthat near led NASA to abort the mission .

relate : How to see the historic SpaceX astronaut set in motion online

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Wednesday ’s launch was canceled within half an hr of the contrive takeoff because of lightning in the area and a violent storm cloud with an " anvil " formation . That cloud was close enough to the launch site that , when it did n’t pass up , NASA said it violated the office ’s weather rule . And the launch itself could have spark lightning strikes on the spacecraft , according to NASA administrator Jim Bridenstine .

Lighting is n’t the only weather feature NASA tracks before a launching though . During the Space Shuttle epoch , NASA publish criteria for those launching . Some of the regulation included :

There were also a complex serial of rules related to galvanizing domain and firing designed to fend off lightning strikes on the fomite . But the most straightforward was this :

The Crew-10 Dragon capsule rests atop a SpaceX Falcon 9 rocket ahead of launch.

" Do not launch when lightning is observed and the swarm that create the lightning is within 10 nautical Admiralty mile of flying path . Launch may not occur until   30 minutes has glide by since the lightning flash , or the cloud has affect more than 10 nautical miles aside . "

All this could spell further trouble for NASA and SpaceX ’s commercial crew plan for the weekend . National Weather Service reportsshow rain and thunderstorms follow and fail all mean solar day today ( May 29 ) at Cape Canaveral , and standardised consideration are in the forecast for tomorrow ’s launching .

Originally release onLive skill .

Butch Wilmore and Suni Williams aboard the ISS in August 2024.

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