Watch here: SpaceX Crew Dragon splashdown today

Weather being watched ahead of Demo-2 return

Despite Tropical Storm Isaias' surge toward Florida's Atlantic shore, NASA said the weather looked favourable off the coast of Pensacola on the extreme opposite side of the state.

The pair are scheduled to undock from the space station at around 7:34pm ET (12:30am United Kingdom time), and travel in SpaceX's astronaut carrier, the Crew Dragon, before splashdown at 2:42 pm ET (7:42pm United Kingdom time).

It will be the first time in 45 years that astronauts have returned to space via an ocean landing.

It then deployed parachutes to slow its speed from 17,500mph to around 15mph before splashing down. The reason it requires such a long trip from time of departure to when it land is the ocean is that it needs to slow down from a starting speed of around 17,500 miles per hour when it departs the ISS.

The SpaceX mission was called a demonstration flight, which is the final step toward certification of the SpaceX capsule for regular trips to the space station.

During their space station stay, Hurley and Behnken assisted the outpost's three other crew members - NASA's Chris Cassidy and Russia's Oleg Skripochka and Ivan Vagner - with maintenance chores and science experiments.

One fun thing: Behnken's wife and fellow astronaut Megan McArthur is also expected to launch to the orbiting laboratory aboard the second operational flight of the Crew Dragon.

Tom Cruise wants to go up in this with his director this space capsule, the Crew Dragon, and film a movie at the International Space Station.

A successful splashdown, Behnken said, will bring US -crew launching capability "full circle". When we clicked in to NASA TV this morning, they were already discussing the splashdown.

"Great to have NASA Astronauts return to Earth after a very successful two-month mission", President Donald Trump wrote on Twitter.

Pilot Doug Hurley, one of the two astronauts on board, said: "It's truly our honor and privilege" as radio communications became choppy and cut out.

"Thank you to all!" he tweeted.

Hurley and Behnken also are bringing back a sparkly blue and purple dinosaur named Tremor.

Two SpaceX recovery ships, the Go Searcher and the Go Navigator, made up of spacecraft engineers, recovery experts and medical professionals, will be waiting to pull the capsule on board and help the astronauts get out as they begin readjusting to gravity. This next mission of four astronauts will spend a full six months aboard the space station.

The US has had to rely on Russian Federation for this objective since the last Space Shuttle flew in 2011. The next SpaceX crew flight is targeted for the end of September. "Don't worry, you can sleep in tomorrow", Behnken's 6-year-old son, Theo, told his dad. And part of that is collecting as much data as they can.



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