The interstellar comet 3I/ATLAS made its closest approach to Earth today (Dec. 19, 2025). Here's the latest news you need to ...

A University of Arizona-led team using a camera orbiting Mars has captured the closest images yet of an interstellar comet so rare that it has sparked wild speculation about its alien origins. The ...

Denmark’s government has set up a night watch alert system to monitor comments that President Donald Trump might make about Greenland, it has been reported. The Danish foreign ministry has a team ...

The interstellar comet 3I/ATLAS could be covered in erupting "ice volcanoes," new observations suggest. Researchers found evidence that as the comet approached the sun, a series of cryovolcanoes ...

"GMFB" awards Week 16 game balls. "GMFB" share their thoughts from the Los Angeles Chargers and the Dallas Cowboys Week 16 matchup. NFL Network Insider Ian Rapoport on latest injury news for Green Bay ...

The interstellar comet 3I/ATLAS is set to make its closest approach to Earth in December. 3I/ATLAS is the third-ever discovered object confirmed to have originated from outside our solar system. While ...

"This is a snapshot of where we are very early in the scientific process." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Since the interstellar ...

The interstellar comet 3I/ATLAS will make its closest approach to Earth on Dec. 19. Originating from outside our solar system, the comet is not a threat to Earth. While not visible to the naked eye, ...

The MarketWatch News Department was not involved in the creation of this content. Lowell Observatory astronomer Dr. Qicheng Zhang has captured the first ground-based optical images of Comet 3I/ATLAS ...

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 ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

A meteor exploded over Michigan's Great Lakes in a green fireball, videos reveal. The dramatic event was likely caused by a comet fragment burning up in the atmosphere. On Sunday (Nov. 23) at around 5 ...