During last year’s brief visit from the comet 3I/ATLAS, astronomers got an extremely rare glimpse into the cosmos beyond our ...

Scientists studying the interstellar object ‘Oumuamua have proposed that it may be a fragment from a Pluto-like planet beyond ...

The finds span thousands of years, confirming how humans have been attracted to water sources for millennia ...

Objects whose existence experts have spent decades trying and failing to account for ...

In 1945, a rancher and his children reported seeing an egg-shaped craft of unknown origin crash in the desert near the ...

Despite being called a "minimoon", Kamo'oalewa is not Earth's second moon. It is a rare type of asteroid known as a ...

Nearly 49 years after its launch, NASA's Voyager 1 continues to send data from around 25 billion kilometres away, making it ...

Letters: Readers respond to letters about testing mental capacity ...

Members of the public are being advised to avoid close contact with the spheres.

Popular communication methods for nonspeaking autistic people have ignited a fierce debate over what counts as evidence of ...

Quasars — the brightest objects in the universe — are powered by supermassive black holes at the heart of early galaxies.

Originally launched in 1977 to explore the outer planets, Voyager 1 transformed scientists' understanding of Jupiter and ...