BBC

Hydrogen sulphide, the gas associated with the smell of rotten eggs, is detected in the atmosphere of Uranus.

An activist who helped expose a water crisis in a US town has been awarded a prestigious environment prize.

The newly discovered canopy-dwelling ants are nicknamed after their bizarre defensive behaviour.

Meet "Plastic King" Robert Bezeau and his four-storey castle made out of recycled bottles in Panama.

Erosion of the cliff at Hemsby, Norfolk, has left 18 homes uninhabitable over the past five years.

The former New York Mayor offers $4.5m to cover the lapsed US contribution to the Paris climate deal.

A Nasa flight analyst explains three things you need to know about going to Mars.

The endangered animal died in Italy during an attempt to fit him with a collar to track movements.

The best and worst space films, according to Nasa

An international team found that a protein causes brain cells to die when it is in the jelly phase.

Engineers finish assembly of the test model for Europe's ExoMars rover mission.

Designer Stella McCartney says fashion is a medieval industry, which produces a huge amount of waste.

The world-famous specimen is the world's best-preserved example of the extinct bird.

The gender gap in science subjects like physics is likely to persist for hundreds of years, study suggests.

The new director-general of the National Trust says the charity needs to reach out to people in urban areas.

How can you create public transport in the jungle without polluting it? The isolated Achuar peoples of Ecuador have created an ingenious solution.

How can you create public transport in the jungle without polluting it? The isolated Achuar peoples of Ecuador have created an ingenious solution.

People across the UK have been enjoying unusually warm weather, but when can we call it a heatwave?

In an example of human natural selection, Asia's Bajau people have evolved bigger spleens for diving.

Scientist Vladimir Uglev has no doubt the agent that poisoned the Skripals was made in Russia.