60 Seconds
NASA to Europa, Californian methane leak, lions protected in US and more
Fences put up to stop refugees in Europe are killing animals
Deer caught in barbed wire are dying after prolonged agony, as border fences fragment territories and interrupt migration of Europe's biggest predators
SpaceX rocket is first to put satellites in orbit and land again
Elon Musk's space company completes its first launch of Falcon 9 rocket since June failure, and gets a step closer to reusable rockets
Polar wildlife under threat as ice melts and makes seas brighter
More light in the Arctic and Antarctica could tear up animals' food webs and change ecosystems in ways we can't foresee
Europe’s oldest lake faces destruction to make way for tourists
Lake Ohrid in Macedonia is one of the world's most biodiverse lakes, but its unique ecosystems may soon be cemented over to make way for development
US drops lifetime ban on gay men donating blood
Men who have sex with men can now give blood – as long as they haven't had sex within the last year
Halting march of Zika virus is health priority for 2016
The virus, which is linked to brain damage in unborn babies, spread rapidly in the Americas in 2015. Global health agencies are hoping they can thwart it next year
Learning to live with floods will be key to UK policy review
UK flood policy needs a complete overhaul says the Environment Agency, including accepting that flooding is inevitable
Ovary freezing offers a drug-free way to tame menopause
Freezing an ovary and then having thin slices of it periodically put back in looks set to offer women a way to delay or reverse menopause
Two missions face off to seek life in icy seas of Enceladus
NASA's Cassini spacecraft has been sampling the plumes on Saturn's moon for a decade, with no sign of microbes. Two proposed missions hope to change that
