Astronomer Avi Loeb argued that other objects like interstellar visitor 3I/ATLAS could be useful for reaching out to aliens, if they exist.

Scientists have seen a powerful explosion from a mysterious, unknown object in space. Researchers do not know where the bright flash came from. But they believe that it may be something entirely ...

Interstellar object 3I/ATLAS nears Earth, showing a rare anti-tail, changing brightness, and new clues about its origin, with ...

The unidentified flying objects shot down over the past week are most likely not from outer space, officials assured America. It had to be said. "I don't think the American people need to worry about ...

Three amateur scientists—Martin Kabatnik, Thomas P. Bickle, and Dan Canselden—working on NASA's Backyard Worlds: Planet 9 project discovered the new object using images from NASA's WISE (Wide Infrared ...

An object in space is emitting radio and X-ray signals with a regularity that astronomers cannot explain. A team has published its observation results in the journal Nature. The object, named ASKAP ...

The US Space Force is tracking six unknown objects that were released into Earth's orbit by a mysterious space plane. The Chinese-operated space plane launched from the Gobi Desert on December 14 and ...