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

Experts have confirmed that the mysterious object hurtling towards us, previously dubbed A11pl3Z, is an "interstellar object.

A mysterious cosmic traveler has found its way to the Solar System from the uncharted reaches of interstellar space. The rare ...

For only the third time in history, astronomers have detected a new interstellar visitor — an object from another star — blitzing into our 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 ...

In a rare astronomical event, astronomers have confirmed the passage of an interstellar object through our solar system.

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

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

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.

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 ...