For over a hundred years, astronomers have puzzled over strange changes in the brightness and motion of Betelgeuse, the ...

According to the paper laying out the research behind the discovery, "TOI-1846b is a super-Earth-sized planet, with a radius of approximately 1.8R⊕, placing it within the intriguing radius valley area ...

Scientists have discovered that Earth could have at least six minimoons that we never knew existed. A minimoon is a small ...

Scientists have issued a concerning update on a mystery interstellar object travelling through our solar system.

An international research team led by the Yunnan Astronomical Observatory of the Chinese Academy of Sciences announced the discovery of a “super-Earth,” offering fresh clues in the search for ...

Astronomers on Wednesday confirmed the discovery of an interstellar object racing through our Solar System – only the third ever spotted, though scientists suspect many more may slip past unnoticed.

Third-ever confirmed visitor, dubbed 3I/Atlas and hurtling at 60 kilometers per second after likely being formed in distant ...

Newly discovered Earth-size planet TOI 700 e orbits within the habitable zone of its star in this illustration. Its Earth-size sibling, TOI 700 d, can be seen in the distance.

NASA has discovered an interstellar comet that's wandered into our backyard. The space agency spotted the object with the ...