Dragon spacecraft undocks from ISS, Shubhanshu Shukla, other Axiom-4 crew members leave for earth after...

SpaceX's Dragon Grace spacecraft has undocked from the International Space Station (ISS). With this, India's Shubhanshu Shukla and three Axiom-4 mission astronauts have begun their return journey to Earth after an 18-day stay. Dragon spacecraft now on 22.5-hour journey to earth with splashdown off the California coast on Tuesday at 3:01 pm IST.

Axiom-4 mission astronauts

Shukla, the mission pilot, commander Peggy Whitson, and mission specialists Slawosz Uznanski-Wisniewski of Poland and Tibor Kapu of Hungary entered the Dragon Grace spacecraft and donned their space suits for the 22.5-hour journey to Earth.

The hatch of the Dragon Grace spacecraft that connected it to the ISS was closed at 2:37 PM IST and the crew members were performing final checks before undocking from the orbital laboratory at 4:35 PM IST. The departure procedures were streamed live from the space station by NASA. The descent of the Dragon spacecraft from the ISS is designed to be completely autonomous.

What happens after undocking?

After undocking, Dragon will perform a series of engine burns to safely distance itself from the ISS and begin re-entry procedures. Final preparations include detaching the capsule's trunk and orienting the heat shield ahead of atmospheric entry, which will expose the spacecraft to temperatures nearing 1,600 degrees Celsius.

READ | Nearly 600 students of this govt school crack NEET, IIT-JEE exams, they were coached by...; name is...

Splashdown

Parachutes will deploy in two stages -- first stabilising chutes at about 5.7 km altitude, followed by the main parachutes at roughly two km. Splashdown is expected off the coast of California approximately 22.5 hours after undocking, and the space capsule will be recovered by a specialised ship. The splashdown is expected to take place off the coast of California at 3:01 pm IST on Tuesday. The Axiom-4 mission began its space odyssey on June 25 when the Falcon-9 rocket carrying the Dragon space capsule blasted off from Florida towards the ISS.

(With inputs from PTI)