Science Glance
The date when stone-age humans first invented the lethal technology of spears and arrows has been set back many thousands of years with the discovery of small stone blades dating to 71,000 years ago.
Archaeologists believe the “bladelets” were used as the sharp tips for arrows or spears and were made by a relatively sophisticated technique involving the heat treatment of stone before shaping the final cutting edges.
Stone-age humans began using lethal technology 71,000 years ago employing spears and arrows to triumph over Neanderthals
Oregon scientists make embryos with 2 women, 1 man
Scientists in Oregon have created embryos with genes from one man and two women, using a provocative technique that could someday be used to prevent babies from inheriting certain rare incurable diseases.
The researchers at Oregon Health & Sciences University said they are not using the embryos to produce children, and it is not clear when or even if this technique will be put to use. But it has already stirred a debate over its risks and ethics in Britain, where scientists did similar work a few years ago.
Talking whale learns to imitate human speech in attempt to 'reach out' to human captors
A captive white whale that made unusual mumbling sounds when he was in the presence of people may have been trying to mimic his human companions, scientists have found.
An acoustic analysis of the sounds made by a beluga whale called NOC has revealed remarkable similarities to human speech patterns, indicating that the whale was trying to “reach out” to his human captors, scientists believe.
Fighting Misinformation about Climate Science
News Corporation misleads nearly 4 million viewers and readers on climate science - Union of Concerned Scientists calls out News Corporation for overwhelmingly misleading coverage of climate science.
On September 21, 2012, the Union of Concerned Scientists hand-delivered nearly 20,000 postcards to News Corporation's New York headquarters calling on News Corp. to stop misleading its audience about climate science.
Planet with four suns discovered by volunteers
Astronomers have found a planet whose skies are illuminated by four different suns - the first known of its type. The distant world orbits one pair of stars and has a second stellar pair revolving around it.
The discovery was made by volunteers using the Planethunters.org website along with a team from UK and US institutes; follow-up observations were made with the Keck Observatory.
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Astronomers discover diamond planet
Forget the diamond as big as the Ritz. This one's bigger than planet Earth.
Orbiting a star that is visible to the naked eye, astronomers have discovered a planet twice the size of our own made largely out of diamond.
The rocky planet, called '55 Cancri e', orbits a sun-like star in the constellation of Cancer and is moving so fast that a year there lasts a mere 18 hours.
Nobel prize in chemistry for US duo
Two American doctors whose work over four decades has revealed how the body responds to the smells, sights, flavours and threats of the outside world have won this year's Nobel prize in chemistry.
Robert Lefkowitz at Duke University in Durham, North Carolina, and Brian Kobilka at Stanford University in Palo Alto, California, share science's most prestigious award – and 8m Swedish kronor (£744,000) – for their discovery of molecular sensors called G-protein-coupled receptors or GPCRs.
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