A giant rocky planet roughly twice the size of Earth and with nearly 20 times as much mass has been spotted in orbit around a faraway star. The planet is the first to be classed as a "mega-Earth" – an
Scientists believe a single injection which reduces the likelihood of heart attacks in mice could be used on humans in 10 years and decrease the risk by up to 90 per cent A single injection can reduce
Driven by surging obesity, an aging population and doubly high risks among blacks and Latinos, the American epidemic of diabetes has leaped to historic heights in the United States, the Centers for Disease
Images recorded by Nasa's Solar Dynamics Observatory show a significant solar flare, classified as an X.2.2 flare, on the sun's surface on Tuesday. A bright beam can be seen being emitted from the sun,
The violent impact that created our moon may have occurred millions of years earlier than previously thought, according to new research. Mounting evidence suggests that the moon came into being after Earth
Do you have difficulty getting enough sleep? Sleep problems affect one in three of us at any one time, and about 10% of the population on a chronic basis. Of Guardian readers who responded to a recent
There's an especially cool "honey moon" rising tonight and you don't want to miss it. Fortunately, spotting it is easy. All you need to do is look up toward the sky sometime after sunset. And if you look
Dinosaurs have long been thought of as slow, lumbering, cold-blooded animals, akin to reptiles like the crocodile and the lizard – but there's been increasing signs in recent years that they may have warm-blooded,
The same internet that brought you "otters holding hands" has delivered new viral gold: newborn twins holding hands. Photos of the infants, born in Ohio last month, and their mother went viral from their
As a courtesy to bug-phobes, some of the more lurid images in this post will be hidden until and unless you press this button. SHOW Animals don’t have actual chastity belts. But male creatures have evolved
Our public media colleagues over at KPCC, Southern California Public Radio, have a fascinating two-part report on the efforts of schools in the Los Angeles area to address the effects of "toxic stress"
Fabien Cousteau and his team are setting out to break the record for living in an underwater habitat. On June 1st, Fabien Cousteau, grandson of Jacques Cousteau, swam down to the last existing undersea
Three simple steps for an intergalactic exit plan The recipe for creating a habitable planet turns out to be surprisingly simple: Just add water—and atmospheric gases. Mars has both, relics from four years
There are two famous, and extremely sad, accounts of dolphin suicide. The first involves Peter the bottlenose dolphin, who is said to have killed himself after being separated from the woman he "loved"
Science teachers may have to add a whole new layer to the water cycle. Scientists have discovered evidence of a vast reservoir of water hiding up to 400 miles beneath the surface. The discovery could our