Antibiotic-resistant bacteria with the potential to cause untreatable infections pose "a catastrophic threat" to the population, the British chief medical officer warns in a report calling for urgent action worldwide.
Astronauts are at an increased risk of infections in space as weightlessness of outer cosmos can make germs even nastier, researchers say.

The giant piece of space rock streaked over the city of Chelyabinsk in central Russia on Friday with the force of 30 of the nuclear bombs dropped on the Japanese city of Hiroshima during World War II.
The answer to whether a romance will blossom into a long-term relationship may be found in the way our brains respond when we think about a new partner, a study says.
To scientists' excitement, the Curiosity rover has completed its first drilling on Mars and is preparing to analyze a pinch of powdery rock.
Scientists have found that some plants like the humble corn display altruistic behaviour just like animals.

Using contrast dye to enhance X-ray imaging of the birds' blood vessels, US medical specialists from Johns Hopkins University in Baltimore have figured out how owls can rotate their heads by as much as 270 degrees.
After spending $6 million to create bionic superhero Steve Austin, scientists have now built a real bionic man from artificial limbs for a sixth of the price.
Scientists have discovered a significant number of bugs living in the middle and upper troposphere, the airy layer eight to 15km above the Earth’s surface. The microbes could have a previously unrecognised impact on cloud formation.

Indian scientists have devised the world's first table-top accelerator that can rev up neutral particles to high speeds, in dramatic research that opens up new possibilities in making high finesse electronic gadgets.
Charu Sudan Kasturi reports.
A Nasa space telescope has spotted surprising ‘magnetic braids’ of super-hot matter in the Sun's outer atmosphere, a finding that scientists claim may explain the star's mysteriously hot corona.
Elated with a cloned buffalo giving birth to a healthy calf, the National Dairy Research of India (NDRI) is now gearing up to clone the endangered wild buffalo. Vishal Joshi reports.
A newly established US company, Deep Space Industries, Tuesday announced a plan to harvest near-earth asteroids.
A lump of rock which crash-landed on Earth in a meteorite shower may hold evidence of alien life within it, a leading UK scientist has claimed.

Scientists have decoded the puzzle of why wolves cannot be tamed, while dogs can gladly become "man's best friend", even though the two share similar genes.