Japan eruption practically undetectable in advance
The type of eruption that left an ashen landscape at the peak of Mount Ontake could occur at many apparently sleeping volcanoes
Chagos marine reserve polluted by politics
Exiled Chagossian islanders complain that a marine reserve gives fish more rights than them. They have a point, says Fred Pearce
Why we weren't ready for Ebola
Peter Piot co-discovered the deadly virus nearly 40 years ago, but says it wasn't thought a major public health threat – until now
Cosmic ray blitz: Space invaders that fry electronics
Intergalactic visitors threaten to bring chaos to our electronic world. Is there anything we can do?
Crazy weather traced to Arctic's impact on jet stream
Evidence is mounting that melting of Arctic ice is weakening the jet stream, causing weeks of cold, hot or stormy weather in the northern hemisphere
Oh give me a rainbow home where the buffalo roam
A vibrant photo captures bison ranging on the lurid and forbidding landscape of the largest hot spring in the US
India's Mars triumph signals a rising space power
With a low-cost Mars mission in the win column, the Indian space programme is setting its sights on more ambitious goals elsewhere in the solar system
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