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 ...

Comet 3I/ATLAS, the third known interstellar object passing through our solar system, is sparking global interest due to its ...

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

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

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

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

Tropical Storm Imelda won’t make landfall in the United States. Tropical Storm Imelda won’t make landfall in the United States, but it will skirt close to the Southeast coast, bringing rain, high surf ...

Asteroid ‘Families’ Reveal Hidden Histories and Impact Risks across the Solar System ...

With help from amateur astronomers, scientists tracked how an asteroid travelled from space, broke up in Earth's atmosphere and sent fiery fragments shooting to the ground, gathering new information ...

Our planet had a "second moon" for a hot minute in 2024. This gave space entrepreneurs a bright idea. Almost a year ago, the space science community watched as an asteroid entered Earth's orbit and ...

With help from amateur astronomers, scientists tracked how an asteroid travelled from space, broke up in Earth's atmosphere and sent fiery fragments shooting to the ground, gathering new information ...