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High up in the sky near the poles some 50 miles above the ground, silvery blue clouds sometimes appear, shining brightly in the night. These are noctilucent or “night shining” clouds. Since 2007, a NASA mission called Aeronomy of Ice in the Mesosphere (AIM) has shown that the cloud formation is changing year... 

Researchers have leveraged the latest browser technology to create GigaPan Time Machine, a system that enables viewers to explore gigapixel-scale, high-resolution videos and image sequences by panning or zooming in and out of the images while simultaneously moving back and forth through time. Viewers, for instance, can... 

Birds are known more for their senses of vision and hearing than smell, but new research suggests that millions of years ago, the winged critters also boasted a better sense for scents. A study published April 12 by scientists at the University of Calgary, the Royal Tyrrell Museum and the Ohio University College of... 

It is well known that the human body has a highly developed immune system to detect and destroy invading pathogens and tumor cells. Now, researchers at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have shown that the body has a second line of defense against cancer —... 

Opinion – This Saturday, at 8:30 p.m., people all around the world will turn off their lights for an hour and join a night of global commitment to create a better future. So why do we bother? In America, the Competitive Enterprise Institute and the Ayn Rand Centre are laughing at it, and asking their supporters to turn... 

Two US spacecraft have moved either side of the Sun to establish observing positions that should return remarkable new information about our star. Launched in 2006, the Stereo satellites have gradually been drifting apart – one in front of the Earth in its orbit, the other lagging behind. On Sunday, Nasa said the spacecraft... 

If the house seems dustier than it used to be, it may not be a reflection on your housekeeping skills. The amount of dust in the Earth’s atmosphere has doubled over the last century, according to a new study by U.S. scientists. And the increase could be a contributing factor to climate and ecology changes around the world. To... 

A new body armour ‘bullet-proof custard’ could help save soldiers’ lives. It is made up of a substance that absorbs the force of a shot or shrapnel by thickening and hardening instantly on impact. Researchers have inserted the formula called a shear thickening fluid between sheets of traditional Kevlar to produce... 

A new type of glass, stronger and tougher than steel, has been developed and tested by a team of US researchers. What’s more, even better versions of this new glass – a micro-alloy featuring palladium – may be on the way, the journal Nature Materials reports. “These results mark the first use of a new... 

WASHINGTON: There’s cheering news on the environmental front — the atmosphere still has its self-cleansing capacity. Some studies had suggested that such self-cleansing power is fragile and sensitive to environmental changes. But a latest international study shows the air’s self-cleansing capacity is rather...