A new study says that wild bees in the US are declining in many areas because of increases in the amount of corn being grown for biofuel.

An unmanned US Falcon-9 rocket booster despatches 11 communications satellites before successfully landing in an upright position at Cape Canaveral.

Conservationists are unveiling their 12 trees of Christmas, in a bid to highlight the plight facing some of the world's threatened conifers.