The 'city killer' asteroid YR4 2024 has a one-in-34 chance of striking Earth in the next seven years, posing a significant ...

Astrophysicists have been grappling with the question of how water arrived on our young planet for decades. One of the ...

The drum is perfectly loaded and set for the one-hour programme. One hour later I check on its progress and it informs me there's still 27 minutes to go.