A Harvard University professor has said that 3I/ATLAS experienced a sudden "nongravitational" acceleration while passing ...

About 50 light-years from Earth, a gas giant about half the mass of Jupiter orbits a sunlike star. The discovery of Pegasi 51 b ushered in a new era of exoplanet research.

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

Researchers armed with a new "photonic lantern" device have discovered an unexpectedly asymmetrical disk of gas swirling ...

Astronomers observe Type II supernova SN 2024bch behaving differently, with energy from Bowen fluorescence rather than ejecta interaction, challenging models of stellar death and high-energy neutrino ...

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

More than a thousand years ago, astronomers from the Maya civilization developed one of the most sophisticated time-keeping ...

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 ...