Analyses of its emissions using NASA’s Neil Gehrels Swift Observatory indicate that the interstellar comet probably has a very different structure than comets in the solar system. Hydroxyl compounds ...

Comets Lemmon and SWAN are now becoming visible. Although they will get brighter next week, you can glimpse them now using binoculars or a telescope.

When you buy through links on our articles, Future and its syndication partners may earn a commission. The Gemini South Observatory in Chile captured this photo of interstellar comet 3I/ATLAS in July.

Interstellar object 3I/ATLAS is on the opposite side of the sun from Earth - but several spacecraft are in the perfect position to get a closer look. As 3I/ATLAS warps and grows the closer it gets to ...

This newly discovered comet could soon glow bright enough for the naked eye as it sweeps through October's morning and ...

As our solar system’s interstellar visitor hides behind the Sun, humankind’s expeditions to Mars have stepped up to provide an extra set of eyes. On Tuesday, the European Space Agency announced that ...

The comet is only the third interstellar object recorded in the solar system. Astronomers just caught a rare glimpse of an interstellar comet as it zoomed past Mars. Images of the object, dubbed ...

A rare interstellar comet — only the third ever confirmed to enter our solar system — was photographed last week, closely approaching Mars, the European Space Agency said Tuesday. The images taken on ...

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 ...

A European Space Agency spacecraft orbiting Mars caught a glimpse of interstellar comet 3I/ATLAS last week. Credit: ESA / D. Ducros illustration As a visitor from another solar system made its closest ...

Astronomers just caught a rare glimpse of an interstellar comet as it zoomed past Mars. Images of the object, dubbed 3I/ATLAS, were captured by two of the the European Space Agency's Mars orbiters -- ...