The European Space Agency (ESA) announced the discovery of the 40,000th near-Earth asteroid, a lot more are still out there.

The Planetary Defence System of the ESA earlier identified the 40,000th near-Earth asteroid. The current tally since the ESA ...

European Space Agency says milestone highlights both Earth’s vulnerability and advances in planetary-defense science - ...

At this point in history, astronomers and engineers who grew up watching "Deep Impact" and "Armageddon," two movies about the ...

Interstellar comet 3I/ATLAS got an accuracy boost thanks to a Mars orbiter, giving scientists insights and stronger planetary ...

Less than two months after asteroid 2024 YR4 shot to the top of the European Space Agency’s risk list of near-Earth objects, ESA now says it “no longer poses significant impact risk” and has ...

NASA's Double Asteroid Redirection Test (DART) impacted the 'moonlet' Dimorphos in the Didymos asteroid system. NASA's Hubble ...

Gaia’s full-sky survey generated a massive database tracking how asteroids reflect light as they rotate. These measurements, called light curves, reveal changes in brightness over time. When ...

See asteroid Dimorphous, pre- and post-impact, in this time-lapse of Hubble Space Telescope imagery. The space rock was ...

ESA improved predictions of interstellar comet 3I/ATLAS’s trajectory using ExoMars TGO data from Mars, achieving tenfold accuracy and enhancing future observations and planetary defence readiness.

Since comet 3I/ATLAS, the third known interstellar object, was discovered on 1 July 2025, astronomers worldwide have worked ...