The latest stories from the Science & Environment section of the BBC News web site.
Updated: 2 min 42 sec ago
UK satellite manufacturer SSTL reaches a key milestone in its work on Galileo, shipping its 22nd navigation payload for Europe's version of GPS.
Dramatic video of Costa Rica's Turrialba Volcano erupting has been captured with an infrared camera.
Solar Impulse has landed in Tulsa, Oklahoma, ending stage 11 in its round-the-world journey.
A migratory bird has shrunk in stature as temperatures warm in its Arctic breeding ground, according to research.
Brain tumours in dogs are similar to human ones and could give clues to how the disease develops, say scientists.
Is there any point in planting new trees?
Disrupting brain activity during rapid eye movement (REM) sleep can stop mice from forming new memories, a study suggests.
European scientists have found a way to super-charge their study of the Antarctic and Greenland ice sheets, enabling them to recover 100 times more detail in areas known to be melting.
An elephant at Whipsnade zoo has a rotten molar extracted after it stops eating and begins losing weight.
A fox cub falls down a drain and the East Sussex Wildlife Rescue and Ambulance Service come to the rescue.
Zika virus can enter the brains of mice in the womb to stunt development, the first animal tests show.
Europe's Swarm space mission is providing an unprecedented view of Earth's protective magnetic field, scientists say.
The Boaty McBoatface row has "put a smile on everyone's face" and been "good for science", the head of the National Environment Research Council tells MPs.
Archaeologists say a tiny stone flake from north-western Australia, nearly 50,000 years old, is a remnant of the earliest known axe with a handle.
Fish are unable to learn the scent of their predators in dying coral reefs, research reveals.
Chile's southern coast has been hit by the biggest ever "red tide" in history. It's caused by toxic algae which is killing sea life and damaging the local fishing economy.
Nasa announces the discovery of more than 100 Earth-sized planets orbiting alien stars.
Five Pacific islands have disappeared as a result of rising sea levels in a first confirmation of the impact of climate change on coastlines, scientists say.
The EU's Sentinel-3a satellite offers a peek at what will be one of its most fundamental products - a map of sea surface height anomalies.
Cross-continental study reveals how camels' genetic diversity is shaped by ancient trade routes.