News
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Planetary ScienceHayabusa2 may have just snagged bits of asteroid Ryugu’s insides
In its second sampling attempt, Hayabusa2 became the first spacecraft to try to pick up some of an asteroid’s guts.
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NeuroscienceBoth fish and humans have REM-like sleep
Sleeping zebrafish have brain and body activity similar to snoozing mammals, suggesting that sleep evolved at least 450 million years ago.
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AnthropologyA Greek skull may belong to the oldest human found outside of Africa
Humans possibly reached southeastern Europe by 210,000 years ago.
By Bruce Bower -
AstronomyMoons that escape their planets could become ‘ploonets’
If giant planets in other star systems lose their moons, the freed objects could become “ploonets,” and current telescopes may be able to find them.