- Hotel guests cycle for supper
A hotel in Copenhagen is offering guests the chance to earn a free meal if they are willing to put some effort into powering the building.
- Fears for shore birds after spill
Wildlife expert Larry Schweiger, president and CEO of the National Wildlife Federation, discusses his fears for shore birds in the Louisiana Wetlands, following the oil spill in the Gulf Coast.
- Heli-skiers cause flurry in Alps
As the snow begins to melt in the Alps, some skiers are finding novel ways to get up to the slopes that chair lifts and cable cars cannot reach.
- Volcanic ash fact-finding mission
A German research plane has taken to the skies above Iceland in order to measure the amount of ash still in the atmosphere following the volcanic eruption that grounded air traffic in Europe.
- Leaders' digital generation debate
The leaders of the three main parties at Westminster have been pitted against each other in a debate broadcast on YouTube and Facebook.
- Baby gorillas airlifted in DR Congo
Four baby gorillas have been flown to a new home by UN peacekeepers who feared for their safety in a DR Congo conflict zone.
- How to rescue a stranded whale
Nick Higham met a two-tonne inflatable whale to find out how volunteers go about rescuing stranded sea creatures.
- Nokia losing out in high tech market
Nokia shares dived 14 per cent today after the world's biggest mobile phone-maker posted disappointing results and cut its forecasts.
- Nasa's jumbo eye in the sky
Nasa has unveiled a giant telescope for infrared astronomy mounted inside a jumbo jet called Sofia.
- Nasa telescope's new Sun images
Nasa's Solar Dynamics Observatory has captured astonishing new images of huge explosions and looping gases on the Sun.