(CBS Local/CNN)-- A mysterious cigar-shaped object spotted tumbling through our solar system last year may have been an alien spacecraft sent to investigate Earth, astronomers from Harvard University ...

The third known visitor from interstellar space, comet 3I/ATLAS, is putting on a show that plays out in high‑energy light ...

I/ATLAS is a natural celestial object with all the qualities typical to a comet. It doesn't just belong to our solar system.

The vast, silent stretches of interstellar space have just coughed up another mystery, and it is one that has left the global ...

Last month, mysterious interstellar object 3I/ATLAS came within just 18 million miles of Mars during its unusual trajectory through our solar system. During its approach, NASA’s Mars Reconnaissance ...

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 ...

The National Aeronautics and Space Administration has confirmed an interstellar object is passing through our solar system. The object is a comet hailing from the direction of the constellation ...

Space agencies around the globe have launched an unprecedented wave of planetary defense exercises, all centered on a mysterious interstellar visitor that refuses to behave like anything scientists ...

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 ...

The Manhattan-size interstellar object 3I/ATLAS will buzz past Mars this week — making its closest pass to any planet on its route as scientists are rushing to coordinate craft to observe the ...

Interstellar objects like 3I/ATLAS are most likely to enter our solar system from two specific directions, a new study suggests. What does it mean for Earth? When you purchase through links on our ...