Frozen fuel: The giant methane bonanza
The race is on to tap the world's biggest and most unusual fossil fuel supply – methane trapped in frozen hydrates in permafrost and at the bottom of the ocean
Did a bet on metal prices save the lives of millions?
Paul Sabin reveals the huge repercussions of a wager in The Bet: Paul Ehrlich, Julian Simon, and our gamble over Earth's future
NASA is turning science fiction into fact
As a new moon orbiter gets set to launch, Pete Worden, director of NASA Ames, says forget the 20th – this is the real space century
Separating neuromyths from science in education
Are you a creative, right-brain type? Do you learn best visually? Sorry, says Tom Bennett, these are all neuromyths that badly need debunking
Martian soup may have been tasty to early life
Early Mars oceans would have been richer than Earth's in a key ingredient for RNA – creating tension for a theory that says a dry Mars could have sparked life
Can it be ethical to implant false memories?
Our behaviour is influenced by what we remember. So tweaking those memories could potentially have a very positive or negative effect on our lives
Double blasts may have birthed exotic quark stars
Two supernovae with unusual signatures may be the best evidence yet of the birth of hypothetical objects called quark stars, created in quark-novae
Swift treatment halves early death risk in HIV babies
A five-year trial shows it is better to give HIV-positive babies prompt drug treatment than to delay until health problems arise
Whales tan too, basking in the big blue
Just like us, whales tan to protect themselves from powerful ultraviolet radiation – it is especially clear in migratory blue whales
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