A slowly rotating, ultrabright object 15,000 light-years from Earth defies every logical explanation that astronomers have thrown at it. When you purchase through links on our site, we may earn an ...

A new analysis of our solar system’s interstellar interloper, 3I/ATLAS, reveals that it’s spewing huge amounts of water — and astronomers can’t immediately explain why. The object, which is widely ...

Nearly five years after its discovery, the interstellar object continues to baffle astronomers. A new analysis suggests a natural, non-alien origin for its strange movement. Conor Feehly is New ...

An interstellar object called 3I/ATLAS has just passed our sun. Despite online rumours that it’s an alien spaceship, experts say it’s definitely a comet.

A space object so strange that some suggested it must be alien has finally been explained. Earlier this year, the James Webb Space Telescope took a picture of a a distant star surrounded by neat, ...