BBC

Astronomers have discovered an object that could be the first known moon located beyond the Solar System.

Christmas has come early for Lapland zoo polar bears with snow in July.

The clean air strategy should include a scrappage scheme and clean air zones, campaigners say.

Complaints from the dairy industry are dismissed as vegan group's advert is given the green light.

People wade into the water to help save a dolphin which was stranded close to the shore

Ministers will unveil a £255m fund to help councils introduce steps to deal with vehicle pollution.

Researchers living near the active Hawaiian Volcano Mauna Loa are simulating what it's like to "live" on Mars.

Nasa's Jack Fischer gives his take on this aurora time-lapse from the International Space Station.

Each wind turbine is taller than Big Ben and the farm can power 20,000 homes.

Contentment comes from paying others to take on chores such as cleaning and cooking, a study says.

China might not have the lead in research but its application of secure networks is leading the way.

There's one question the BBC's science editor keeps being asked about life on the ice.

Glacial microbiologist Dr Joe Cook on life on the ice.

A new analysis suggests there's a greater chance of the heavy rain that led to extensive flooding in 2014.

The nine-year-old has no active HIV in the body after catching the infection at birth.

New rules will encourage UK consumers to generate and store their own power, ministers say.

We analysed how the body responds to stress - by making presenter Jordan Dunbar do a comedy performance.

The revolutionary technology allows wind power to be harvested in waters too deep for current turbines.

An underwater robot spotted the lava-like rocks inside a reactor of Japan's destroyed nuclear plant.

Male elephant seals recognise the rhythm of one another's voices, researchers say.