BBC

Travelling in time might sound like fantasy, but some physicists think it might really be possible.

Rivers overall are getting cleaner, but water firms still need to do better, the Environment Agency says.

Victoria Gill joins scientists trying to find out how wildfires affect the air we breathe.

It will be the first privately-funded unmanned spacecraft to land on the lunar surface.

The UK's new £200m polar research ship is on the slipway ready to go in the River Mersey.

Discovery of "first giant" shows how and when dinosaurs grew to such massive proportions.

Campaigners find many legally sold antique ivory trinkets in Europe come from recently killed elephants.

Laura Foster explains how the Novichok nerve agent works and what to do if you think you've been exposed to it.

The overwhelming majority of krill companies are to stop fishing in vast areas of the Antarctic Peninsula.

A boy who jumped off a cliff into water in Llanberis escaped injury when rocks fell in after him.

"Depressed over Brexit. Went fishing," he posts alongside a photo of himself holding the protected species.

A banned chemical used to make household insulation is implicated in damage to the ozone layer.

Hundreds of thousands more charge points could be installed under plans from the transport secretary.

The technology to give people superhuman powers is being developed, but is it the right thing to do?

Bristol University has discovered how spiders fly thousands of miles

The pollution has now "diluted" and is no longer causing problems, says the Environment Agency.

The robot vehicle would retrieve rocks that could be brought to Earth for detailed study.

A toad named after the character in Lord in the Rings joins a new list of species at risk of extinction.

The EPA administrator has been embroiled in allegations of ethics violations for months.

Controversial survey suggests oil platforms can act like offshore reefs and encourage wildlife.