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Black holes snacking on small stars create particle accelerators that bombard Earth with cosmic raysGamma rays detected by NASA's Fermi spacecraft indicate that microquasars are powered by small black holes slowly devouring ...
Astronomers briefly raised the alert level for an asteroid that could be on a collision course with Earth. They gave it a 3% ...
An asteroid measuring as wide as 295 feet is possibly headed right toward Earth, but don’t run for cover just yet. A ...
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