From the BBC:
"Nasa SpaceX launch: Astronauts
complete rehearsal for historic mission”
Nasa astronauts Doug Hurley and
Bob Behnken have completed their dress rehearsal for Wednesday's flight to the
International Space Station. The mission, the first crewed outing from American
soil in nine years, will see the pair ride to orbit in a SpaceX Falcon rocket
and Crew Dragon capsule. It's a demonstration of the new "taxi"
service the US space agency will be buying from the Californian firm. Lift-off
on Wednesday is timed for 16:33 EDT (20:33 GMT / 21:33 BST). The weather around
the Kennedy Space Center in Florida may have other ideas, however. A forecast released on Saturday by the US
Space Force 45th Space Wing Weather Squadron predicted just a 40% chance of
favourable conditions come launch time. There is a strong possibility the
Kennedy complex could see thick cloud, rain and even thunder. If controllers
are forced to scrub, everyone will come back on Saturday for a second try. Hurley
and Behnken are now all but done with their preparations. The weekend "Dry Dress" rehearsal
saw the pair don their made-to-measure spacesuits, walk out to a Tesla, and
then make a 6km drive down to Kennedy's famous Launch Complex 39A. Their SpaceX
Falcon-9 rocket has been sitting erect on the pad since Thursday. The men then
got in the service tower lift to go up to the access arm gantry and climb into
the capsule. The run-through gave all launch personnel - not just Hurley and
Behnken - the opportunity to remind themselves of what's to come. The famous
"Astrovan" seen on so many shuttle missions has been replaced by a
gull-winged Tesla. SpaceX, like Tesla, is owned by Elon Musk There is huge focus on this mission. Not since
the space shuttles were retired in 2011 has America been able to launch its own
astronauts. Getting crews to the ISS these past nine years has been a task
entrusted solely to Russia and its Soyuz rocket and capsule system. Nasa has
contracted both SpaceX and aerospace giant Boeing to pick up where the shuttles
left off. The difference this time is that the agency will not own and operate
the vehicles. It will merely be buying "tickets to ride". SpaceX and Boeing will be free to sell their
services to other space agencies, other companies and even individuals. Hurley
and Behnken have named their Dragon in the tradition of all previous American
crewships. They'll reveal that name on Wednesday.
^ Hopefully this launch will go
off without a hitch because the American people (including myself) have had
little interest in space for several years now and won’t want to spend anymore
money on it. It would also be good for American Astronauts to go into and back
from space from the US and not from Russia (or any other country.) ^
https://www.bbc.com/news/science-environment-52788432
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