Mars Ascent Vehicle
The Mars Ascent Vehicle, seen here in an earlier NASA design, will launch from the surface of Mars to place samples collected by the Perseverance rover into orbit. Credit: NASA
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WASHINGTON — NASA plans to delay the next phase of its Mars Sample Return campaign and split a lander mission into two separate spacecraft to reduce the overall risk of the program.

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Jeff Foust writes about space policy, commercial space, and related topics for SpaceNews. He earned a Ph.D. in planetary sciences from the Massachusetts Institute of Technology and a bachelor’s degree with honors in geophysics and planetary science...