SCIENCE

Pulsars usually rotate more slowly as they age, but XB091D is spinning faster.

The marks were carved into the sea floor in the polar regions thousands of years ago.

Föhn winds are blowing across the top of the ice sheet, while warm sea water melts it from below.

Climate change is the major reason behind falling populations of these flightless birds.

Creepy dolls litter the ghost town of Pripyat, but were they abandoned by fleeing children or placed there by visitors?

World Penguin Day aims is to raise awareness of the plight of some penguins and highlighting the importance of protecting the Antarctic's marine environment.

The 25ft animal carcass was discovered floating in the water by a photographer.

A majority of the west coast was evacuated for fear of tsunamis.

Loma Blanca fault went through a cluster of strong earthquakes.

The president made the surprise announcement while talking live to the International Space Station.

Wax caterpillars can leave plastic shopping bags in tatters after just a few hours.

The otherworldly mats of floating strands were discovered at the top of Tagoro submarine volcano.

Titan is brighter at twilight that in daylight, according to a new study.

Bronze jewellery, stone tools and intact pottery were abandoned as the native Colla people fled.

Blue whales have been listed as endangered by the International Union for Conservation of Nature.

The drug is so potent it has been compared to nerve gas.

Research into the origins of the elusive 'hobbit' species has led to heated debates among scientists.

Tiny Homo floresiensis lived on Indonesian island of Flores until 52,000 BC.

Protesters fear election of Trump and 'post-truth era' are undermining scientific advances.

China hopes to have its own crewed space station in orbit by 2022.

Energy campaigners said it was a 'watershed' moment.

Tories made last-minute appeal to the high court to delay publication of an air-quality plan.

The stone carvings were found in Turkey's Göbekli Tepe.

Cassini will be first man-made probe to explore within Saturn's rings before self-destructing.

Apple wants to stop third parties from using spare parts to repair older products like iPhones and iPads.

Check out some of the best photos clicked by Nasa's satellites and International Space Station.

In 2014 Emmanuel de Merode was hit by four bullets in an ambush but that won't stop him raising $1m.

14 sea lions have died this April from domoic acid poisoning.

Watch the much-loved British broadcaster and naturalist speak at the Earth Optimism event.