Gaia’s full-sky survey generated a massive database tracking how asteroids reflect light as they rotate. These measurements, called light curves, reveal changes in brightness over time. When ...
Mars is about to receive a double dose of attention. This weekend, a pair of identical NASA satellites will launch together ...
Answer: It’s a comet that comes from another stellar system, from another star. It’s the third one we’ve ever discovered. The first, 1I/ʻOumuamua, resembled an asteroid more than a comet, but the ...
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