Nasa

The huge asteroid that hit Earth and wiped out the dinosaurs 66 million years ago was not alone, scientists have confirmed.

A second, smaller space rock smashed into the sea off the coast of West Africa creating a large crater during the same era.

It would have been a “catastrophic event”, the scientists say, causing a tsunami at least 800m high to tear across the Atlantic ocean.

Dr Uisdean Nicholson from Heriot-Watt University first found the Nadir crater in 2022, but a cloud of uncertainty hung over how it was really formed.

Two Nasa astronauts who have been stuck in space for over two months will return to Earth in February 2025 with SpaceX.

Nasa said the Boeing Starliner spacecraft the astronauts Sunita Williams and Barry Wilmore had travelled to International Space Station (ISS) on would return to Earth "un-crewed".

The pair took off on what was planned to be an eight-day mission on 5 June but will now spend around eight months in orbit.