US firm SpaceX fails in its third attempt to retrieve a booster rocket intact, after an otherwise successful launch.

A deep-sea worm that eats whale bones has existed for 100 million years and may have chewed up chunks of the fossil record, a study suggests.

A gray whale makes a 22,500 km (14,000 mile) journey across the Pacific Ocean - the longest migration of any mammal, say scientists.

Scientists have uncovered a vital new insight into the nature of dark matter.

Scientists quantify the emissions from Iceland's spectacular Bardarbunga-Holuhraun eruption.

Scientists are using YouTube videos to study a spectacular cave just outside Riyadh, the capital of Saudi Arabia.