Globetrotting Sahara sand takes rain to California
Particles blown into the air in Africa and Asia cross the Pacific and increase rain and snow in the Sunshine State
HIV baby 'cured' with triple blast of drugs
A combination of three antiretroviral drugs is said to have eliminated HIV from an infected baby, but the claim is being treated with scepticism
Crunch time for physics: What's next?
From the big bang to the Higgs boson, our theories of reality are far from complete. This special feature asks if it's time for a radical rethink
Splash and grab: The global scramble for water
What we call land-grabbing is often more about access to irrigation. We urgently need to know how much is being purloined, says Fred Pearce
Close encounters with a living dinosaur
An award-winning photo catches the elusive cassowary, which has the reputation of being the most dangerous bird in the world
Timing was everything when Darwin's bombshell exploded
Peter Bowler's Darwin Deleted shows that the shock of Darwin's theories may have delayed the acceptance of evolution - and science may have paid the price
Physics crunch: Seven experiments to change it all
With theory stalled, the next breakthrough in physics is likely to come from an experiment. We introduce seven potential game-changers
First fluid knots created in the lab
Mathematical knots cannot be untied - and now they have been made in water, a feat that could boost our grasp of aircraft wings and quantum superfluids
Wanted: A Bob Geldof for climate change
Humanitarian disasters can inspire us to change the world for the better. Can we find a hero to do the same thing for global warming?
Herbal Viagra actually contains the real thing
Seven of a batch of 10 "natural" remedies for erectile dysfunction actually contain the active chemical ingredient from Viagra
Mars trip to use astronaut poo as radiation shield
To protect themselves from cosmic rays the couple aboard the proposed Inspiration mission to Mars will line the craft's walls with water, food - and their own faeces
X-ray speed cameras clock superfast black hole
Two X-ray telescopes have teamed up to measure the spin of a supermassive black hole at the centre of a galaxy - and it's pushing the cosmic speed limit
Humanitarian disaster blamed on climate change
The failure of a rainy season, which put thousands of people at risk of starvation, was made more likely by our greenhouse gas emissions
Bunnies implicated in the demise of Neanderthals
The debate over what Neanderthals ate, and how it may have led to their demise, has turned to rabbits
SpaceX capsule hits a glitch on space station trip
The second commercial cargo flight to the ISS lifted off today - but SpaceX's Dragon capsule had trouble spitting fire once in orbit
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