Astronomers just measured the mass of a free-floating planet without a star for the first time ...
When 3I/ATLAS swept past the sun in late October 2025, it became only the third confirmed visitor from interstellar space ...
Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...
The theorized unseen structure of spacetime could also explain of the outstanding questions about the accelerating expansion ...
APM 08279-5255 is a massive black hole (quasar) that contains about 140 trillion times the amount in all of Earth’s oceans ...
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