Short-period comets get close to the sun much more often than their long-period kin, and every time they do, they deplete more of their gas and dust. Consequently, they don’t typically emit as much ...

Astronomers observing 3I/Atlas have found unusual jet-like formations and an ‘anti-tail,’ giving new clues about how ...

Why did 3I/ATLAS interstellar comet turn green and hide tail? New telescope images reveal the reasons behind its glowing ...

The latest observations were made on November 5 by researcher Qicheng Zhang of the Lowell Observatory in Arizona ...

I/ATLAS recently passed its closest point to the sun. Because of its unusual behavior, some scientists are wondering if it's ...

Interstellar object 3I/ATLAS no longer has a tail, defying behavior for a “typical comet,” and adding to mystery surrounding ...

Comet 3I/ATLAS is just the third observed interstellar object ever witnessed in Earth's solar system. The Gemini South telescope in Chile is the latest observatory to get a glimpse of the object as it ...

The article introduces "dark comets," a newly identified class of celestial bodies exhibiting nongravitational acceleration characteristic of comets but lacking visible dusty tails, unlike typical ...

Scientists have discovered seven more "dark comets," and analysis of this haul suggests that the puzzling planetoids are divided into two distinct families, further deepening the mystery of why these ...