Our solar system’s third discovered interstellar visitor, comet 3I/Atlas, will dip into the glare of the Sun this week, ...

The 3I/ATLAS interstellar object, detected by NASA, is remarkably larger and more massive than earlier estimates, making it ...

Astronomers are tracking a newly discovered interstellar visitor called 3I/ATLAS, and early research suggests it may be ...

The entire progression will be observed by the ESA’s orbiters the Mars Express and ExoMars Trace Gas Orbiter as well as NASA’s Mars Reconnaissance Orbiter which will utilize the cutting edge HiRISA ...

A massive comet traveling through the solar system is much larger than previously thought and could be a remnant of alien ...

On July 1, the ATLAS (Advanced Technology Large-Aperture Space) telescope discovered comet 3I/ATLAS, "the third object from outside our solar system to be discovered so far," accor ...

A comet traveling outside the solar system and heading toward the Earth is much larger than scientists first believed, a ...

A respected Harvard astrophysicist believes one of the most famous signals ever sent to Earth could have been sent by the ...

I/ATLAS stands apart from other interstellar objects because of its size as well as pace, and will soon disappear from ...

Anthony Wood joined Space.com in April 2025 after contributing articles to outlets including IGN, New Atlas and Gizmodo. He ...

Harvard astornomer Avi Loeb suggests interstellar object 3I/ATLAS could've sent off the Wow! Signal back in 1977.

Something strange is moving through our solar system — and scientists are scrambling to figure out exactly what it is.