17 July 2014
Europe's mission to land on a comet was always going to be difficult, but the pictures released this week of the giant ice ball illustrate just how daunting the task will be.
Dinosaurs might have survived if the asteroid that wiped them out had hit the Earth a few million years later or earlier, a new study suggests.
Two fast-moving fires in California destroy 10 homes and force the evacuation of hundreds more, as a man dies in a lightning strike in Los Angeles.
What do experiments that go on for decades actually tell us?
The risks of walking in the English countryside
European spat over energy savings target
Scientist claims 'child prodigy' getting credit for his discovery
The atomic ship that totally failed to change the world
Why the US public lost interest in lunar exploration
Do butterfly wing patterns really mimic predator eyes?
Enormous reticulated python gets annual check-up
Models and concepts by famous car manufacturers
UK Climate Secretary travels the world for emissions deal
The young medic who found the deadly Ebola bug
Ocean exploration is going further than ever
The beaches where Lego keeps washing up
Europe develops advance unmanned combat planes
A rare British butterfly is given a new home
Sir Chris Hoy reveals how he became Britain's greatest ever Olympian
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