BBC

Artificial intelligence software is being used to look for signs of alien lifeforms.

The veteran ERS-2 Earth observation spacecraft dives to destruction 2,000km west of California.

Pollution controls have seen mercury emissions plummet - but levels in tuna have remained stable.

Pollution controls have seen mercury emissions plummet - but levels in tuna have remained stable.

Cantor's giant softshell turtle is native to the rivers of south Asia and is critically endangered.

Investigation by Global Witness suggests cattle farming is driving illegal deforestation in the savannah featured in BBC's Planet Earth III.

Europe's pioneering ERS-2 Earth observation spacecraft will make an uncontrolled dive to destruction.

Astronomers report an object that shines with a brightness equivalent to 500 trillion suns.

Astronomers report an object that shines with a brightness equivalent to 500 trillion suns.

The zoo found the coins during a routine examination and urged visitors not to throw coins into exhibits.

Rishi Sunak is to unveil support for farming and food production, at the NFU's annual conference.

Animal welfare charities welcome the African Union decision to ban the donkey skin trade across the continent.

Right to roam campaigners say hundreds of "open country" locations are inaccessible to the public.

Extremely potent greenhouse gas leaked from a Kazakh well for over six months.

A market for a traditional medicine made from donkey skin is fuelling the slaughter of working animals.

A stingray called Charlotte is pregnant despite having no mate, in a suspected case of parthenogenesis.

If the Odysseus craft lands safely it would be the first private mission to successfully land on the Moon.

If all goes well, it would mark the first time a private firm has successfully landed a spacecraft on the Moon.

It may be bigger than a large city - but the world's biggest iceberg can still turn on a sixpence.

It is hoped the creation of a marshland site will be a "corridor" for wildlife including wading birds.