Comet Siding Spring swept closer to Mars than any known comet in recorded history, creating the largest-ever-known meteor shower. But the sun got in on the act.
Theoretical work indicates at least 1 fast radio burst, or FRB, going off somewhere each second. It contradicts the idea that FRBs might be evidence of an alien technology.
The calving of this iceberg in July reduced the size of Antarctica's Larsen C ice shelf by 12 percent. The berg hung near the coast awhile, but now it's seen drifting.
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