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

The exoplanet, Kepler-725c, has 10 times the mass of Earth and is located in the habitable zone of the sun-like star Kepler-725. The discovery is published in Nature Astronomy.

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

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

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.

The LIGO Hanford Observatory near the Tri-Cities and its twin in Louisiana detected ripples of time and space passing through Earth from the most massive collision of black holes ever observed, a ...

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

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.

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