The ancient lake environment found in Mars' Gale Crater by the Curiosity rover could have supported a type of microbe called a chemolithoautotroph - if it had been present.
Israel, Jordan and the Palestinian Authority sign a water co-operation pact aimed at one day replenishing the rapidly drying Dead Sea.
The mystery of one of the strangest landscape features on the planet - Mima mounds - is solved, scientists say.
A Scottish botanist goes missing while on a plant-hunting trip to a mountainous region of Vietnam.
Personal-genetics company 23andMe says it is "not going anywhere", after the Food and Drug Administration ordered it to stop marketing-spit testing kits.
Half of the mixed state-funded schools in England reinforce gender imbalances in terms of subjects students study at A-level, research shows.
Up to 100,000 people in Saudi Arabia are to have their genetic codes mapped by 2017.
The London-based Inmarsat company launches the first spacecraft in a new £1bn global telecommunications network.
Would-be women engineers will get extra financial support next year under a new government scheme in England.
Researchers find direct evidence that female lemon sharks go back to their own birthplace to reproduce.
New research on South and Central American monkeys suggests that size is a key indicator of diet.
The Chancellor George Osborne announces annual funding of £90m over five years for the UK to collaborate with emerging nations.
More men in California rise in pitch at the end of their sentences when talking, new research shows.
A security researcher says he has found a way to hijack a popular brand of drones by launching a Raspberry Pi-equipped aircraft of his own.
The world's biggest vessel takes to the water for the first time in South Korea.
A 28-year-old woman has begun a legal bid to prevent her dead husband's frozen sperm from being destroyed.
Genetic testing firm 23andMe, which is backed by Google, stops marketing its products after a warning from US regulators, a spokeswoman says.
China launches its first lunar rover mission - named Jade Rabbit - the next key step in the Asian superpower's ambitious space programme.
British firm E2V shows off a prototype designed to bring cars to a halt by confusing their electronics, causing their engines to shut down.
The US SpaceX rocket company puts a commercial TV satellite in orbit, marking its ambition to take a big slice of the market for launching telecommunications spacecraft.
A celebration by football fans in the US city of Seattle grew so loud on Monday evening it registered as a minor earthquake, a research group says.
Ten whales die and as many as 30 more are stranded after a pod beached off Florida's Everglades National Park.
The government is to make major changes to the way it subsidises renewable energy with more emphasis on offshore wind power, the BBC has learned.
Koalas have a specialised sound-producing organ that has never before been seen in any other land-dwelling mammal, scientists discover.
Tiny particles of waste plastic that are ingested by shoreline "eco-engineer" worms could have an adverse impact on biodiversity, a study shows.
New attempts to protect a critically endangered New Zealand dolphin have angered campaigners who fear the mammal will soon be extinct.
The pilot badger cull in west Gloucestershire fails to make the 70% target set by the government, official figures show.
Seals on the north Norfolk coast fared better than first thought after last week's tidal surge, experts say.
A massive "communal latrine" full of thousands of fossilised poos offers a time capsule to the dawn of the dinosaurs, scientists say.
An eagle snatched a video camera which was recording crocodiles in northwest Australia and captured fascinating footage of its 70 mile (110km) journey across the country's remote landscape.