Volunteer astronomers sifting through infrared images from a retired NASA telescope have spotted a faint object racing ...

Astronomers are baffled as a mysterious object speeding through space executed a maneuver akin to an 'alien spacecraft' braking. The majority of experts believed 3I/ATLAS was a comet zooming through ...

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 ...

NBC News' Gadi Schwartz reports on "3I/ATLAS," a mysterious outer space object that is thought to be billions of years old, making its closest approach to Earth, giving scientists an opportunity to ...

Hundreds of mysterious objects have appeared in images captured by the Webb space telescope. The curious dots could reshape ...

A team of astronomers have conducted a study that has lifted the veil on a nearly 100 year mystery that explains an odd dark ...

A large chunk of burning detritus discovered in the Pilbara desert of Western Australia appears to be space junk that reentered Earth's atmosphere, the Western Australia Police Force has announced.

Astronomers have found a massive cloud of metallic winds orbiting a mystery object in space. The cloud was found when scientists noticed the light of a nearby star, which is located some 3,000 ...