The oxygen was either produced by life forms or by a chemical reaction in the atmosphere of MarsMars had an oxygen-rich atmosphere more than a billion years before the Earth, say scientists. An examination of meteorites and rocks on the planet suggests that oxygen was affecting the Martian surface four billion years ago.On Earth, oxygen…
The author of Cracked selects a battery of books that challenge received wisdom about mental illness and how to treat itI wrote Cracked: Why Psychiatry Is Doing More Harm Than Good because of the huge gulf between what most people believe about psychiatric diagnoses and medications and what the evidence actually reveals. When I started…
Droughts, floods, sea-level rises and fiercer storms likely to undermine progress in developing world and hit food supplyMillions of people around the world are likely to be pushed back into poverty because climate change is undermining economic development in poor countries, the World Bank has warned.Droughts, floods, heatwaves, sea-level rises and fiercer storms are likely…
Reluctance to be tested puts large numbers of people potentially at risk from second largest cause of cancerMore than three quarters of eligible Australians are not being screened for bowel cancer despite it being offered for free, which is putting them at risk from the second biggest cause of cancer death in the country.A study,…
Researchers find vast cityscape hidden under deep vegetation linking the Cambodian temples complexAirborne laser technology has uncovered a network of roads and canals, illustrating the remains of a bustling ancient city linking Cambodia's famed Angkor Wat temples complex.The discovery was announced late on Monday in a peer-reviewed paper released early by the Proceedings of the…
Radioactive glassy beads created by the first nuclear explosion may hold clues to earth's distant historyThe sun was rising as a teenage boy swung a metal wand back and forth. The Geiger counter hanging at his waist clicked, testifying to the radiation streaming from the ground and through his body.The White Sands Missile Range in…
US space agency recruits four women among its eight new candidates, the highest percentage yet selectedThe US space agency Nasa has eight new astronauts – its first new batch in four years. Among the lucky candidates are the first female fighter pilot to become an astronaut in nearly two decades. A female helicopter pilot also…
US policymakers love discussing it, but the debate on food aid reform is getting tedious. Emergency interventions will always be necessary, but it is time to shift our focus to long-term solutionsSince the global food price spikes of 2008-09 and the widespread riots that ensued, the world has begun to pay more attention to food…
Professor of ophthalmology sees in greater depth after watching Martin Scorsese's Hugo in 3DA university professor who has struggled with depth perception since birth says his vision has dramatically improved after watching 3D movies.Bruce Bridgeman, a professor of psychology at the University of California, Santa Cruz, lived with poor depth perception until he watched the…
Voyage by Solar Impulse – the first to fly by night as well as day – is designed to showcase clean energy technology It took nine minutes from the time the Solar Impulse first appeared in the midnight sky, lit up along the entire elegant swoop of its Airbus-size wings, to the moment the plane…
