These 20 "city killer" asteroids, each over 140 metres in size, could potentially be on a future collision course with Earth.

Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the ...

A swarm of giant city-killer asteroids hiding near Venus poses an “invisible threat” to life on Earth, astronomers have warned in a new study. These space rocks, known as co-orbital asteroids, tag ...

A swarm of large asteroids likely lurking around Venus could one day pose an "invisible threat" to Earth if left unchecked, ...