A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and Earth. The authors dubbed it Planet Y.
Dwarf planet 2023 KQ14, Ammonite, has a stable orbit that challenges the hypothesis of the mysterious Planet Nine.
Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its ...
Space scientists look back on 30 years of exoplanet discoveries — from rows of massive ‘super-Earths‘ to worlds with ...
"It shows that Makemake is not an inactive remnant of the outer solar system, but a dynamic body where methane ice is still ...
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