ESA tests tiny instrument to measure asteroid's tiny gravity

Artist's concept of Juventas deploying its two CubeSats

When ESA's Juventas CubeSat lands on Dimorphos in 2026 to assess the aftermath of last year's spectacular collisions with NASA's DART spacecraft, its GRAvimeter for small Solar System bodies (GRASS) instrument will directly measure the asteroid's gravitational pull, which is a millionth that of the Earth.

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Category: Space, Science

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