A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...
Live Science on MSN
'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 ...
Our solar system now, once again, officially consists of only eight planets. Although largely debunked, speculation continued ...
A rogue visitor from deep space, Comet 3I/ATLAS, has put NASA on alert after its trajectory and behaviour shifted ...
The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...
A recent study by Princeton University astronomers suggests the possible existence of a previously undetected planet in our ...
The sun is a dynamic part of our solar system, and it throws plasma and radiation out into space regularly. But not all of ...
Planets do not emit visible light like stars; they shine in the sky because they reflect sunlight. Exoplanets too reflect ...
Space.com on MSN
Earth photobombs the sun in satellite image | Space photo of the day for Oct. 23, 2025
The image was taken by GOES-19, the newest in the Geostationary Operational Environmental Satellite series operated by NOAA.
Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining ...
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