A scientist has recently posited that a mysterious interstellar object, potentially of extraterrestrial origin, appears to be ...

NASA's new research reframes orbital debris as a financial risk, quantifying the economic impact of collisions and mission ...

How do we know the speed of light – and why does it have a speed limit at all? Leah Crane explores the history of one of the most important numbers in the universe ...

Astronomers have identified Comet 3I/ATLAS as an interstellar object, making it only the third confirmed visitor from outside ...

Behind the Sun, the comet appears to show signs of acceleration beyond what is expected by gravity. And for reasons not yet ...

The theoretical physicist and best-selling author finds inspiration in politics and philosophy for rethinking space and time.

I/ATLAS has unexpectedly become bluer than the Sun, hinting that it could be emitting light, not just reflecting it — a sign ...

"The implication of alien technology would be huge and therefore we must take it seriously,” Harvard's Avi Loeb told Newsweek ...

A piece of a comet decided to take a fatal dive into the Earth’s atmosphere, causing a bright flash and explosion tens of ...