What will Voyager 1 discover at the bow of the solar system?
As the Voyager 1 spacecraft approaches the very edges of our solar system, space scientists await to see if it will discover the solar system's 'bow shock'; a theorized pile up of gas, dust, and cosmic rays, ...
CryoSat maps largest-ever flood beneath Antarctica
(Phys.org) —ESA's CryoSat satellite has found a vast crater in Antarctica's icy surface. Scientists believe the crater was left behind when a lake lying under about 3 km of ice suddenly drained.
Scientists say Russian meteor shockwave went twice around globe
How did a third radiation belt appear in the Earth's upper atmosphere?
(Phys.org) —Since the discovery of the Van Allen radiation belts in in the Earth's upper atmosphere in 1958, space scientists have believed that these belts consisted of two doughnut-shaped rings of highly ...
Mars water-ice clouds are key to odd thermal rhythm
(Phys.org) —Researchers using NASA's Mars Reconnaissance Orbiter have found that temperatures in the Martian atmosphere regularly rise and fall not just once each day, but twice.
Ocean acidification killing oysters by inhibiting shell formation, study finds
(Phys.org) —For the past several years, the Pacific Northwest oyster industry has struggled with significant losses due to ocean acidification as oyster larvae encountered mortality rates sufficient to ...
Pollution in Northern Hemisphere helped cause 1980s African drought
Decades of drought in central Africa reached their worst point in the 1980s, causing Lake Chad, a shallow lake used to water crops in neighboring countries, to almost dry out completely.
Elevated carbon dioxide making arid regions greener
Scientists have long suspected that a flourishing of green foliage around the globe, observed since the early 1980s in satellite data, springs at least in part from the increasing concentration of carbon dioxide in Earth's ...
Northern hemisphere losing last dry snow region, says study
(Phys.org) —Last July, something unprecedented in the 34-year satellite record happened: 98 percent of the Greenland Ice Sheet's surface melted, compared to roughly 50 percent during an average summer. ...
Cooling ocean temperature could buy more time for coral reefs
(Phys.org) —Limiting the amount of warming experienced by the world's oceans in the future could buy some time for tropical coral reefs, say researchers from the University of Bristol.
Western Indian Ocean earthquake and tsunami hazard potential greater than previously thought
Earthquakes similar in magnitude to the 2004 Sumatra earthquake could occur in an area beneath the Arabian Sea at the Makran subduction zone, according to recent research published in Geophysical Research Le ...
Cleaner energy, warmer climate? Researchers explore the possible consequences of expanding biofuels
The growing global demand for energy, combined with a need to reduce emissions and lessen the effects of climate change, has increased focus on cleaner energy sources. But what unintended consequences could ...
NASA study projects warming-driven changes in global rainfall (w/ Video)
(Phys.org) —A NASA-led modeling study provides new evidence that global warming may increase the risk for extreme rainfall and drought.
Scientists detect dark lightning linked to visible lightning
(Phys.org)—Researchers have identified a burst of high-energy radiation known as 'dark lightning" immediately preceding a flash of ordinary lightning. The new finding provides observational evidence that ...