Astronomers are scrambling to gather data on a mysterious object that’s currently hurtling through the solar system.

Interstellar object headed towards Mars, but poses no threat to Earth, says head of planetary defence at the ESA.

Astronomers on Wednesday confirmed the discovery of an interstellar object racing through our Solar System -- only the third ...

Update: NASA has confirmed the object is an interstellar comet and says it has been officially named 3I/ATLAS.

A11pI3Z: Astronomers believe fast-moving object A11pI3Z could be only the third known interstellar visitor, after 'Oumuamua ...

News about International Astronomical Union. Commentary and archival information about International Astronomical Union from The New York Times.

The freshly minted telescope discovered 2,000 previously unknown asteroids in just 10 hours. Weirdly, NASA doesn’t seem to ...

Our peer-reviewed reports present the evidence-based consensus of committees of experts. Published proceedings record the presentations and discussions that take place at hundreds of conferences, ...

The International Astronomical Union voted Thursday encouraging space organizations across the globe to collaborate on a timekeeping standard for the moon, where one day lasts 29.5 Earth days.

The International Astronomical Union recognized 128 newly discovered moons orbiting the ringed planet. By Laura Baisas. Published Mar 12, 2025 10:00 AM EDT. As of March 2025, Saturn has 274 known ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system. The object—which orbits out beyond Neptune—has been named "2017 OF201" by the ...

The International Astronomical Union reclassified Pluto as a dwarf planet because it does not clear its orbit of other debris. Pluto was the little planet that could — until it couldn’t.