Our nearest star system may have a planet with a colossal set of rings

We know that there is at least one planet orbiting Proxima Centauri, the nearest star to…

Ripples in Earth’s atmosphere make distant galaxies appear to flash

Faraway galaxies have been spotted unexpectedly flashing up to 100 times their usual brightness, and it…

Mysterious ‘Planet Nine’ on the solar system’s edge may not be real

Strange orbits of distant space rocks have been used to infer that the solar system has…

A giant raft of rock may once have floated across Mars’ ancient ocean

Mars could have had an ancient ocean in its northern hemisphere, and a large raft of…

A giant raft of rock may once have floated across Mars’s ancient ocean

Mars could have had an ancient ocean in its northern hemisphere, and a large raft of…

Interstellar comet Borisov came from a cold and distant home star

The interstellar comet Borisov, which flew past Earth in December, is full of carbon monoxide ice…

Asteroid Arrokoth may have broken its neck in 6400 km per hour impact

Arrokoth, a strange two-lobed space rock, was hit by another rock at some point – the…

The orbit of a star near our galaxy’s black hole proves Einstein right

A star that swoops close to the Milky Way’s supermassive black hole has a strange, looping…

Long space flights can increase the volume of astronauts’ brains

Spending at least six months in microgravity can cause astronauts’ brain volumes to increase, causing pressure…

Astronomers have spotted the most powerful supernova ever

An explosion 4.6 billion light-years away has released 10 times more energy than the sun will…