The small, icy visitor now racing away from the inner solar system is not just another comet. It is an interstellar object, ...

The interstellar comet 3I/ATLAS, the third confirmed object from outside the Solar System, passed closest to the Sun on ...

The 3I/ATLAS threw off over 13.5 million metric tons of water in the month after perihelion, a plume so large that it caused ...

No two comets are exactly alike. While SWAN’s orbit is very well aligned with the plane of the planets as they orbit the sun, Lemmon’s orbit is highly inclined, tipped by more than 140 degrees, ...

A mysterious interstellar comet known as 3I/ATLAS is about to make its closest approach to Earth in December 2025. Here's everything to know about it.

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

I do so love an ostentatious comet. As I wrote in a recent “The Universe” column, when these dusty ice balls are billions of kilometers from the sun, they’re frozen solid. But as they near our star on ...

Astronomers worldwide are gearing up for a year of spectacular comet sightings in 2026. Multiple comets will be observable through binoculars and small telescopes. Some, like C/2025 R3 PanSTARRS, may ...

Exactly 150 summers ago, stargazers were admiring a beautiful new comet. Discovered in mid-July 1862 by Americans Lewis Swift and Horace Tuttle, the new object became favorably positioned high in the ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

On this list, you'll find some weird incidents on Earth, a bit of Russian space drama and, of course, that little ...