Perihelion is the point on an orbital course that brings a body closest to the sun. C/2025 K1 (ATLAS) is an Oort cloud comet ...

Astronomers can usually spot "planet killer" asteroids long before they approach Earth. But what if they can't?

A newly discovered asteroid, 2025 SC79, is drawing global attention due to its unusual orbit inside Venus's path and its ...

Astronomers have identified 2025 SC79, a new asteroid with a remarkably fast 128-day orbit, placing it among the ...

In a discovery that could rewrite what we know about where water comes from and the building blocks of life in the solar ...

Nasa announced this week that the object, first identified by the University of Hawaii, qualifies as a “quasi-moon.” It’s not ...

A.I. insights predict the outcomes of a massive asteroid strike on our planet. Exclusive: Three-star general pushed out amid ...

There are many programs that detect near-Earth asteroids as part of countries' planetary defense strategies. In the case of ...

In a remarkable feat of celestial detection, astronomers have uncovered a skyscraper-size asteroid that was previously ...

A small asteroid, known as 2025 TF, flew over Antarctica on October 1, 2025, at an altitude of only 266 miles.

The comet, called 3I/ATLAS, is the third known interstellar object that has come through our solar system. As it flies deeper ...

Dive into NASA's ATLAS system as interstellar 3I/ATLAS nears Sun on 29 Oct 2025—no Earth hit, but astrometry campaign probes ...