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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 ...
When you look at the solar system, you might notice that the planets' orbits are tilted, and oddities in the protoplanetary ...
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?
A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...
A mysterious space object named 2023 KQ14, nicknamed “Ammonite,” challenges theories about the mysterious and possible Planet ...
Astronomers have observed a massive growth rate in a free-floating rogue planet that’s gobbling up gas and dust at a record ...
We thought we understood planets, but the planetary disk chemistry of far-away XUE 10 is completely changing our conception ...
Astronomers have spotted a free-floating ‘rogue’ planet, named Cha 1107-7626, that is going through a massive growth spurt, ...
Jupiter, the largest planet in the solar system, was 2 to 2.5 times bigger in its earlier life, according to new research. Credit: NASA / JPL-Caltech / SwRI / MSSS / Tanya Oleksuik Jupiter, the ...
Interstellar comet 3I/ATLAS has caught the interest of astronomers and amateur enthusiasts alike as just the third object to ...
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