Some extraordinary asteroids have “activity”—comet-like tails or envelopes of gas and dust. NASA’s Active Asteroids project announced the discovery of activity on fifteen asteroids, challenging conventional wisdom about the solar system. To find these fifteen rare objects, more than 8000 volunteers combed through 430,000 images from the Dark Energy Camera (DECam) on the Victor M. […]
Posted on
March 15, 2024
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