Scientists say energy from the most recent tests in the secretive state too small to be considered hydrogen bomb.
Any amateur astronomer can view the activity of black holes, as researchers find optical rays are emitted.
Mountains of stinking rubbish are piled up on the outskirts of Beirut, reaching the height of motorway overpasses.
Torrential rain deluged Britain, cutting power to thousands of homes and forcing some to evacuate flooded streets.
Why do some animals have two tone coats?
Harvard-Smithsonian astronomers say globular clusters could host intelligent life in Milky Way.
Thousands of people sign petition to have newly discovered heavy metal named after recently deceased frontman.
Pablo Carlos Budassi created this image using Photoshop, and data from Princeton University and NASA.
The Oxford Farming Conference and the Oxford Real Farming Conference take place over the next few days.
Abandoned Peruvian pooch Estrella developed new walking skills much like a human baby.
Scientists use aversion training to stop lizards from eating deadly cane toads.
Meteorologists predict freak weather caused by El Nino will continue across the world.
Scientists discover bones in China millions of years older than those found in Kenya.
Birds migrate through Europe and south-east Asia, creating acrobatic patterns across the skylines of Rome, Israel and Macedonia.
Discovery defies an age-old misnomer that black holes are only destructive in nature.
The 5.1 magnitude quake struck near the Punggye-ri nuclear test site in the country's north-east.
A new study shows homicide rate increasing dramatically since 2000, reducing the average life expectancy with it.
A glittering city of ice has been constructed in north-eastern China's Heilongjiang province.
Amazing day-to-night panoramas of US National Parks such as the Grand Canyon and Yellowstone Park, by photographer Stephen Wilkes.
Giant ape that stood at 10ft tall went extinct because it could not adapt to diet and habitat changes.
From Oswald of Northumbria to Harold II - royal burials that went missing.
10,000 humpback whales usually migrate to the Hawaiian Islands this time of year. This year, they have disappeared.
Enceladus, Rhea and Atlas seen in image taken by spacecraft co-owned by NASA, plus European and Italian space agencies.
Scientists discover BNNTs hold potential for lighter aircraft better able to shield space radiation.
Chief of Indian space agency speaks to IBTimes UK on Isro's satellite-based navigation system Gagan.
Regulated trophy hunting is allowed in the country to manage the wild animal population.
PM Narendra Modi unveils 'Technology Vision 2035' for India at science gathering in Mysuru.
Remains of a 2700-year-old farm house and a 1,500-year-old monastery have been discovered in Israel.
Magnetic fields occur in red giants more often than we thought, altering astronomers idea of how they evolve.
With a magnitude reaching 6.7, an earthquake has hit the remotest area of north-east India, with tremors being felt in neighbouring countries such as Nepal and Bangladesh.