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'Planet Y' theory hints at hidden Earth-size world lurking in the solar system — and it could be much closer to us than 'Planet Nine'
A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...
ScienceAlert on MSN
Planet Y: A Hidden Earth-Size World Could Lurk Far Closer Than 'Planet Nine'
The simulation of the Solar System that came the closest to the observation was the presence of a small planet, between the ...
WASHINGTON — Stargazers will have a special chance to see seven planets align in the night sky this week as Mercury joins Venus, Mars, Jupiter, Saturn, Uranus and Neptune in a planetary parade. In ...
New planet is one of the best ever hopes for seeing alien life, scientists say - Less than 20 light years away, we could soon ...
Researchers have discovered chemical fingerprints of Earth's earliest incarnation, preserved in ancient mantle rocks. A ...
Focusing on a planet-healthy diet can provide nutritious food to the global population while reducing environmental damage, a new EAT-Lancet Commission report says.
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