Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Phaethon, the ...
The Geminid meteor shower is best known for the reliable show it puts on during the winter holiday season. But the event is also unique because it stems not from a comet but from an asteroid: 3200 ...
This space-rock oddity has long puzzled scientists for its rather non-asteroid-like behaviors, and it’s just revealed yet another curious characteristic. In 2009, NASA’s Solar Terrestrial Relations ...
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