BBC

Methane on the Red Planet waxes and wanes with the seasons - another clue in the search for life.

The oldest known "footprints" left by an animal have been uncovered in China.

A Canadian firm says new technology has dramatically cut the cost of removing carbon from the air.

The European Commission sets out how it wants to spend €100bn (£87bn) on science in the next EU budget.

Scientists Simon Lewis and Mark Maslin believe humans are not on an inevitable course to self-destruction.

The axolotl - a salamander unique to Mexico - has almost been wiped out by pollution and over-fishing.

He will join a cabinet appointed by the new PM where at least half of the ministers will be women.

Scientists say pollution could have unpredictable effects on Europe's forests by damaging fungi.

Results from the MiniBooNE physics experiment suggest a particle known as the sterile neutrino might have been found.

The next European commander of the International Space Station has just blasted off into orbit.

The European Commission wants to expand its space activities, and will set up a new agency to support them.

British farmers say they are facing a shortage of workers to pick fruit and vegetables as recruitment companies say they can't find enough to fill vacancies.

Canada is on the verge of legalising marijuana for recreational use. The BBC visited a huge cannabis farm in British Columbia, which the operators say is the world's largest.

BBC Science Editor David Shukman explains what happens to plastic once it gets into the sea.

If approved, plans for a third runway are likely to be debated and voted upon in the coming weeks.

Levies and bans have been among the most effective strategies to curb plastic waste, a UN report says.

Traditional remedies used by gardeners to deter slugs and snails are to be tested scientifically for the first time.

Dancing makes us feel good...but dancing together is even better

At least 62 people are known to have died when the Fuego volcano erupted on Sunday.

Technology and energy efficiency could see a rapid fall in demand for fossil fuels even without new climate policies.