NASA's treasure trove of new comet 3I/ATLAS images provides hotly anticipated views of the interstellar visitor, including from Mars and the sun.

Could Mars have just stolen Earth’s front-row seat to one of the rarest cosmic events in decades? In early October, NASA’s Mars Reconnaissance Orbiter (MRO), the MAVEN spacecraft, and the Perseverance ...

Telescopes around the world are now tracking a new visitor to our celestial neighborhood. Streaking through at a speed and trajectory that not even the Sun's immense gravity can capture, we will only ...

On July 1, astronomers spotted an unusual high-speed object zooming towards the sun. Dubbed 3I/ATLAS, the surprising space traveler had one very special quality: its orbit showed it had come from ...

Florissant resident and astronomy lead for International Dark Sky, Mark Harter captures Comet Lemmon at Florissant Fossil Beds. (Courtesy Mark Harter) One of the greatest things about living in Teller ...

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 ...

A comet that just skirted past our sun should light up the night sky this week. The comet, Comet ATLAS (C/2024 G3), was only discovered in April 2024, and reached its closest point to our sun ...

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, ...

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 ...

No two comets are exactly alike. Of course, they can appear similar. Two decently bright comets that share a superficial resemblance are gracing our skies right now, in fact: C/2025 A6 (Lemmon) and ...

Once you remember that the sun also orbits the solar system's common center of mass, it all makes sense. Our sun is wobbling, and this has a huge impact upon the regularity of many of Earth's meteor ...