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 ...
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 ...
Since Pluto was relegated to dwarf planet status, almost everyone has agreed that there are eight planets in our solar system ...
Opinion
Space.com on MSNStrange 'puffy' alien world breaks every rule for how planets should behave
A low-density, puffy planet orbiting relatively far from a young star in a nearly perpendicular orbit. What's going on?
Green Matters on MSN
Has NASA Found Another Earth-Like Planet?
Did NASA find another Earth? Scientists look to the sky to find a copy of our planet, and some experts think they may have ...
Astronomers are investigating a strange class of exoplanets known as eccentric warm Jupiters — massive gas giants that orbit their stars in unexpected, elongated paths. Unlike their close-orbiting ...
The enigma of the intruder about the same size as Manhattan Island is making astronomers rethink what they know about cosmic ...
NASA recently launched a telescope designed and built by UMass Lowell and the space agency that seeks to identify planets beyond the solar system and other objects in space that would ...
In a study published in October 2025 in the Astrophysical Journal, we modeled one of the sources of these geomagnetic storms: ...
What makes 3I/ATLAS especially intriguing is that the comet might be three billion years older than our entire Solar System.
Space is filled with outliers. While some solar systems function similarly to ours, others embody astrophysical properties that scientists still cannot explain. Some extrasolar gas giants, for ...
The universe is truly magical: vast, mysterious, and endlessly fascinating. There’s something almost unreal about being able ...
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