Have you ever been out at night and seen a streak of light blast across the sky and disappear? Ever wonder where that shooting star came from, or how it got to be in your sky? As the director of the ...
The night sky occasionally offers a reminder that the Solar System is far from empty. Bright comets appear with glowing tails, while reports of passing asteroids often make headlines. Although the two ...
A near-Earth object once thought to be an asteroid turns out to be a dark comet, challenging scientists' notions about identifying space rocks. Credit: NASA / JPL-Caltech illustration For nearly three ...
A near-Earth object that spent more than two decades in planetary defense catalogs as an asteroid has been reclassified after scientists detected faint but unmistakable signs of cometary activity. The ...
(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) As the director of the Peters Observatory at Hamilton College, I have seen many ...
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