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This concept animation shows just one of many potential concepts for how the first human landing site on Mars might evolve throughout the course of multiple human expeditions to the Red Planet over a decade or more. NASA

On March 8, 2019, the SpaceX Crew Dragon spacecraft undocks from the International Space Station, after nearly 5 days aboard the orbiting laboratory during the company's Demo-1 mission for NASA's Commercial Crew Program and descends to re-enter the Earth's atmosphere. Just over 5 hours later, the uncrewed spacecraft splashes down in the Atlantic Ocean off the coast of Florida and is recovered by SpaceX teams.

Astronaut Loral O'Hara is making her first spaceflight after selection as part of the 2017 NASA astronaut class. The Texas native earned a Bachelor of Science degree in aerospace engineering at the University of Kansas, Lawrence, and a Master of Science degree in aeronautics and astronautics from Purdue University in West Lafayette, Indiana. Prior to joining NASA, her work focused on the engineering and operations of deep-ocean research submersibles and robots. At the time of her selection in June 2017, O'Hara was a research engineer at Woods Hole Oceanographic Institution in Woods Hole, Massachusetts, where she spent eight years working on the engineering and operations of underwater vehicles such as the human-occupied research submersible Alvin and the remotely operated vehicle Jason. O'Hara will launch to the space station on Sept. 15 for a mission with Roscosmos cosmonauts Oleg Kononenko and Nikolai Chub. She will join Expedition 69/70 as a flight engineer aboard the space station. Join NASA as we go forward to the Moon and on to Mars -- discover the latest on Earth, the Solar System and beyond with a weekly update in your inbox.

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