When you look at the solar system, you might notice that the planets' orbits are tilted, and oddities in the protoplanetary ...
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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 ...
Live Science on MSN
Which planets are the youngest and oldest in our solar system?
There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?
Voyager 1 has been exploring the cosmos for decades, but when it reached the edge of the solar system, it found something ...
Created by the sun, the protective bubble of the heliosphere shields our solar system from harmful radiation. A new mission ...
Need a refresher about 3I/ATLAS? Here's everything to know about the interstellar object, including when the latest ...
The comet is one of only three of its kind recorded in history. But others think there could be more to this celestial object.
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