BBC

President jokes while signing space agency funding bill

Dvur Kralove Zoo in the Czech Republic, has taken the decision to remove the horns from its white rhinos for their safety.

A change in just a single 'letter' of the flu virus allows bird flu to pass to humans, according to scientists.

The comet visited by the Rosetta spacecraft is constantly being re-shaped, sometimes in dramatic fashion, a study suggests.

Earth's history is recorded in the magnetisation of its hard, outer shell.

Striking workers block the roll-out of the booster at the Kourou spaceport in French Guiana.

Too little new woodland is being created in England, say MPs, amid warnings of a "tree planting crisis".

The world continues to experience extreme climate trends after a record breaking 2016, says WMO.

Protein extracted from funnel webs may help minimise the effects of brain damage after a stroke.

Not all cyber-attacks are about theft, some seek to undermine the trust placed in data and documents.

Researchers discover five new sub-atomic particles that could help to explain how atoms are held together.

New technology which could be used by club doctors is being trialled, a BBC investigation finds.

Knowing why some sperm succeed and others fail could help treat male infertility, researchers say.

How a sperm manages to reach the fallopian tubes is clear at last, scientists say.

The SpaceX Dragon capsule returns to Earth after its mission to the International Space Station.

How a remote community in Guyana is using cutting-edge software and equipment against deforestation.

The second man to set foot on the Moon, launches a virtual reality movie detailing his plan to get humans to Mars.

Taronga Zoo's baby pygmy hippopotamus - the first born in seven years - has made its first public appearance.

Researchers in the US are working with dolphins in an effort to work out why closely related whale species in the wild strand themselves on land.

Science correspondent Rebecca Morelle describes her violent encounter with Europe's most active volcano.