About 50 light-years from Earth, a gas giant about half the mass of Jupiter orbits a sunlike star. The discovery of Pegasi 51 ...

A class of University of Texas astronomy students has discovered that nearby dwarf galaxy Segue-1 seems to host a ...

This is only the third interstellar comet scientists have observed. Its extreme brightening, unusual composition, and intense ...

If an alien species were to visit Earth, Pope Leo's newly appointed astronomer -- Father Richard D'Souza -- would welcome the ...

Although it's smaller than a planet, Chiron could be a natural laboratory for learning about how ring systems form, change, ...

Astronomers discover a 3-billion-year-old white dwarf, LSPM J0207+3331, actively accumulationplanetary material long after its star’s death, revealing ongoing dynamics in ancient stellar remnants.

As mankind was planning the first moon landing in the 1960s, an asteroid approached Earth—and still hasn’t left.

Meng Dezhao, a Ph.D. student from the Xinjiang Astronomical Observatory of the Chinese Academy of Sciences, together with his ...

Researchers are discussing 2025 PN7, a small celestial body that's following a similar orbital path to our planet's without ...