After several failed attempts to negotiate the tough terrain of the Tibetan plateau, farming cold-tolerant barley helped humans adapt to year-round living at higher altitudes some 3,600 years ago, says a new research.
Even if humans settle down in other planets in future, will they have asustained food supply, considering the huge cost of transporting food from earth?
Russia is planning to put a manned colony on the moon as soon as 2030, and is racing to dispatch the first robotic rovers to explore the lunar surface two years from now.
Buzz Aldrin, the US astronaut who became the second man to walk on the moon, has said that the US must lead the way towards building a permanent settlement on Mars.
New evidence may overturn the current theories of how humans colonised the Pacific.
Day in Pics: 25th November
Showbiz World - November 25, 2014