SpaceX Dragon Capsule Returns to Earth with Ocean Splashdown

A SpaceX Dragon capsule is seen just after being released by the International Space Station's robotic arm on March 19, 2017 as capsule begins the trip back to Earth. The Dragon capsule delivered 5,500 lbs. of supplies to the space station and was returni
A SpaceX Dragon capsule is seen just after being released by the International Space Station's robotic arm on March 19, 2017 as capsule begins the trip back to Earth. The Dragon capsule delivered 5,500 lbs. of supplies to the space station and was returning 5,400 lbs. of science and gear. (Image credit: NASA TV)

A SpaceX Dragon spacecraft splashed down in the Pacific Ocean Sunday (March 19), returning to Earth with more than 2 tons of science experiments and other gear from the International Space Station.

The robotic Dragon cargo ship splashed down off the coast of Baja California where it could be swiftly retrieved by a recovery team. The space capsule left the station early Sunday after being released by astronauts Thomas Pesquet (of France) and Shane Kimbrough (of NASA) using a robotic arm. SpaceX representatives reported a good splashdown of Dragon at  at about 10:48 a.m. EDT (1448 GMT) in a Twitter post. 

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"Today we said goodbye to Dragon," Pesquet, a European Space Agency astronaut, wrote in a Twitter post. "She is taking part of us back to the ground with her — important scientific samples, some from the crew!"

The Dragon cargo ship launched Feb.19 atop a SpaceX Falcon 9 rocket. It delivered 5,500 lbs. (2,500 kilograms) of science gear and supplies, and marked SpaceX's first launch from NASA's historic Pad 39A at the Kennedy Space Center in Florida.

Unlike the disposable cargo ships that service the space station — like Russia's Progress vehicles, Orbital ATK's Cygnus craft and Japan's HTV-2 vehicles —SpaceX's Dragon capsules are equipped with a heat shield that allow cargo to be shipped back to Earth, a boon for scientists. On this flight, Dragon returned to Earth with about 5,400 lbs. (2,450 kilograms) of space station gear.

"Everything from stem cells that could help us understand how human cancers start and spread after being exposed to near zero-gravity, to equipment that is paving the way toward servicing and refueling satellites while they’re in orbit will be on board," NASA officials said in a statement.

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Other experiments and instruments returning on Dragon included: samples from a tissue regeneration and bone defect study, which studied how weightlessness affected the regrowth of lost bone and tissue from wounds; a prototype laser communications device for faster data transmission; a prototype for a space radiation proof computer for long space missions; and a robotic refueling technology experiment for in-space refueling and satellite servicing.

 This Dragon flight was SpaceX's tenth cargo delivery mission for NASA under a commercial cargo contract. SpaceX is also one of two companies (Boeing is the other) selected by NASA to fly astronauts to and from the space station. SpaceX is developing a crewed version of Dragon for those flights, while Boeing is building its own CST-100 Starliner crew capsule.

Email Tariq Malik at tmalik@space.com or follow him @tariqjmalik and Google+. Follow us @Spacedotcom, Facebook and Google+. Original article on Space.com.

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Tariq Malik
Editor-in-Chief

Tariq is the Editor-in-Chief of Space.com and joined the team in 2001, first as an intern and staff writer, and later as an editor. He covers human spaceflight, exploration and space science, as well as skywatching and entertainment. He became Space.com's Managing Editor in 2009 and Editor-in-Chief in 2019. Before joining Space.com, Tariq was a staff reporter for The Los Angeles Times covering education and city beats in La Habra, Fullerton and Huntington Beach. In October 2022, Tariq received the Harry Kolcum Award for excellence in space reporting from the National Space Club Florida Committee. He is also an Eagle Scout (yes, he has the Space Exploration merit badge) and went to Space Camp four times as a kid and a fifth time as an adult. He has journalism degrees from the University of Southern California and New York University. You can find Tariq at Space.com and as the co-host to the This Week In Space podcast with space historian Rod Pyle on the TWiT network. To see his latest project, you can follow Tariq on Twitter @tariqjmalik.