Impulse Mars lander
An illustration of a Mars lander, within its entry capsule, separating from its cruise stage upon arrival at Mars. Impulse Space would build the lander and Relativity Space would launch it. Credit: Impulse Space

WASHINGTON — Two startups, each yet to fly their first missions, said July 19 they are collaborating on a Mars lander mission they claim could launch as soon as 2024.

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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...