BBC

Getting to the Red Planet is challenging, and so it working out how many have failed.

The Ugandan hunter said that he had killed the animal in self defence when he was attacked.

Review of UK mammals finds that a quarter of native species are at "imminent threat of extinction".

Concerns grow as Nile River nations fail to reach a deal on how to share the vital waters.

Ingenuity is a 1.8kg (4lb) helicopter that will ride to Mars attached to the belly of Nasa's Perseverance.

Archaeologists have pinpointed the source of the stones to an area 15 miles north of the site.

The one-tonne vehicle will search for signs of Martian life and prepare rocks to send home to Earth.

Research suggests a close ancestor of the coronavirus emerged in bats between 40 and 70 years ago.

The European aerospace company will make a huge satellite to bring Mars rocks back to Earth.

See the damage done by waves – and the problem will only get worse with climate change, experts say.

The Princess Royal has guest edited Country Life magazine ahead of her 70th birthday.

Ecuador is on alert due to the appearance of a fleet of fishing vessels off the Galapagos Islands.

An independent review of the UK's food policy calls for a new green revolution.

An audacious mission to bring rock samples from Mars back to Earth is about to begin - find our more with our illustrated guide

A villain with the markings of the Marvel character is among 164 new species discovered in Australia.

The organisms had been in a dormant state in the seabed in the South Pacific since the age of dinosaurs.

Sir Richard Branson's tourist spaceplane company updates on progress, unveiling a cabin design.

The world's biggest nuclear fusion project has entered its five-year assembly phase.

Tahlequah captured the world's attention when spotted carrying her dead calf for 17 days.

Experts from Heriot-Watt University's Orkney campus analysed the genetic composition of oarweed from 14 areas.