"It is incredible that modern telescopic surveys have the ability to detect such small objects up to millions of kilometers ...

It took over nine years for New Horizons to reach Pluto after blasting off atop an Atlas 5 rocket on Jan. 19, 2006. After ...

After defending his PhD thesis on modeling interstellar objects on Monday, June 30, Matthew Hopkins intended to take some ...

SpaceX’s efforts to dim its Starlink satellites will likely be effective, at least for one major observatory. But the ...

The solar system has an uninvited guest that is currently shooting toward us on a one-way trip through our cosmic ...

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

All eyes are on Comet 3I/ATLAS as astronomers worldwide chase the exotic ice ball through our solar system ...

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

The International Astronomical Union (IAU) is an international scientific union with both individual members and national members. The National Academy of Sciences serves as the U.S. national member.

International Astronomical Union joins calls for a lunar clock to keep time on the moon The moon rises behind the television tower in Frankfurt, Germany, Tuesday, April 23, 2024.

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

The International Astronomical Union recognized 128 newly discovered moons orbiting the ringed planet.