Huge twin study homes in on 'gay genes'
The biggest study of its kind links gay men's orientation with two regions of the genome picked out previously – suggesting that being gay has some genetic basis
Philae's hop, skip and jump across comet 67P
Check out this image of Philae's journey over comet Churyumov–Gerasimenko, as captured by the orbiting Rosetta spacecraft
Should we all get out of fossil fuels now?
UN head Ban Ki-moon has urged divestment from fossil fuels. Premature posturing, says Paul Younger. No, it's vital and timely, insists Tim Ratcliffe
Being born early is now the chief cause of infant death
As doctors get to grips with infections in infants, another problem is taking over: premature birth is now the leading cause of death in under-5s worldwide
I'm engineering for 10,000 metres under the sea
A deep-sea exploration vehicle imploded this year – now engineer Victor Zykof explains how he aims to build one that's more than a match for the pressure
14 myths and maybes about burning fat
There's no end of pop wisdom about why we gain or lose weight, from "fast" metabolisms to what time of day you eat. Here's what science really says
Habitable exomoons born in cosmic collisions
Simulations suggest that moons that can hang on to an atmosphere only form in certain types of cosmic collisions
Frigid matter powers first quantum circuits
A cloud of super-chilled atoms guided by lasers could form the circuits of the future, opening the door to applications like quantum navigation systems
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