Comet 3I/ATLAS, a rare interstellar visitor, is visible this week as it departs the solar system, with some public events ...

Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what ...

Interstellar comet 3I/ATLAS makes its closest approach to Earth this week, sparking alien theories and global interest as ...

This week the eyes and telescopes of the world will be watching to learn everything we can,' says an astronomer.

Two remarkable celestial events will take place in the night skies on Wednesday and Thursday: a supermoon and a comet that will soon disappear forever from Earth’s view. As previously reported by ...

A recently discovered comet, known as C/2023 A3 Tsuchinshan-ATLAS, will make its closest approach of Earth on Saturday. Sky-gazers won't want to miss the event since it may be the last time the comet ...

Dozens of students gathered at Harvard’s Loomis-Michael Observatory on Thursday and Friday for a rare viewing of Comet Tsuchinshan-ATLAS, a comet visible to the naked eye that researchers say is ...

An instrument aboard NASA’s Europa Clipper spacecraft captured rare ultraviolet observations of an interstellar comet while Earth-based telescopes were blinded by the Sun. The spacecraft’s unique ...

Coloradans looking to the west in the early evening hours this week have the chance of spotting an ancient marvel not seen for 80,000 years. An Oort Cloud comet is currently passing Earth as part of ...

The Southwest Research Institute-led Ultraviolet Spectrograph (UVS) aboard NASA's Europa Clipper spacecraft has made valuable ...