Supermassive black holes cause galactic-scale warming
For most of their lives, galaxies are lush environments for turning gas into stars. Until they aren’t. Over the last few billion years, a mysterious kind of “galactic warming” has turned huge numbers of galaxies into deserts devoid of fresh young stars. The puzzle for astronomers has been identifying the unknown process that keeps the gas in these dormant galaxies too hot and energetic to form stars. Today, astronomers from the Sloan Digital Sky Survey (SDSS) are announcing the discovery of ..>> view originalA Shocking Find In a Neanderthal Cave In France
In February 1990, thanks to a 15-year-old boy named Bruno Kowalsczewski, footsteps echoed through the chambers of Bruniquel Cave for the first time in tens of thousands of years.The cave sits in France’s scenic Aveyron Valley, but its entrance had long been sealed by an ancient rockslide. Kowalsczewski’s father had detected faint wisps of air emerging from the scree, and the boy spent three years clearing away the rubble. He eventually dug out a tight, thirty-meter-long passage that the thinnes..>> view originalThat study critiquing NASA's 'bad science' on asteroids is pretty bad science
(NASA illustration) On Monday, the New York Times published a piece on Nathan P. Myhrvold, former chief technologist of Microsoft. Myhrvold, who has built a reputation for himself as something of a patent troll, says he's shown that NASA's research on asteroids is a mess. Myhrvold has a PhD in physics, but no experience with asteroids — which he says makes him the perfect man to take this bad science down. Myhrvold's paper, which he's made available online, is 110 pages long and has not yet ..>> view originalAncient Beer Recipe Uncovered in China, Archaeologists Say
A beer recipe roughly 5,000 years old has been uncovered in China — and researchers call the finding "surprising" because it means people there were importing a critical ingredient from thousands of miles away. A team of archaeologists from Stanford University, Brigham Young University and two Chinese institutions discovered a cache of ancient brewing equipment — including jugs, pots and funnels — containing remnants of mashed grains and other starches. Read More from CNBC: Has Craft Beer ..>> view originalAfrican Crocodiles Found In Florida Everglades
As if alligators and pythons weren’t spooky enough, researchers say they’ve discovered something new lurking in the swamps of the Florida Everglades. DNA testing shows that three crocodiles found since 2009 are confirmed to be man-eating Nile crocodiles. They were brought to Florida from Africa as pets, but escaped. University of Florida professor Frank Mazzotti tells Here & Now’s Jeremy Hobson that Floridians don’t need to panic – yet.Guest Frank Mazzotti, professor of wildlife ecology at the U..>> view originalScientists Reveal Why Antarctic Sea Ice Continues To Grow While Arctic Sea Ice Melts
Scientists Reveal Why Antarctic Sea Ice Continues To Grow While Arctic Sea Ice Melts The continued growth of Antarctic sea ice in the face of global warming might be explained by a new study backed by NASA and the NOAA. By Tyler MacDonald | May 25, 2016 01:20 PM EDT The continued growth of Antarctic sea ice in the face of global warming might be explained by a new study backed by NASA and the NOAA. (Photo : Getty Images) Despite the fact that Arctic sea ice is melting, a persistent growth of..>> view originalMystery of Massive Black Holes May be Answered by NASA Telescopes
This illustration represents the best evidence to date that the direct collapse of a gas cloud produced supermassive black holes in the early Universe. Researchers combined data from NASA's Chandra, Hubble, and Spitzer telescopes to make this discovery.>> view originalDid massive solar flares set up conditions for life on early Earth?
A tantrum-throwing baby sun might have triggered the chemical reactions that made life on Earth possible, according to a new model proposed by NASA scientists. For life as we know it to emerge, the planet needed to be warm and wet. Those conditions are evident as the sun beats down on Earth today, but 4 billion years ago the sun was not as strong. In fact, this young sun was so faint – at about 70 percent of today's brightness – that early Earth should have been more of a snowball than a tropic..>> view originalSquid, octopus, and cuttlefish are booming: Good news from the sea?
It's rare to hear about life doing well in the oceans these days. But cephalopods – a group of marine animals that includes squids, octopuses, and cuttlefish – are thriving. And cephalopods aren't merely getting by. They've been on the rise for the past six decades, according to a study published Monday in the journal Current Biology."It is certainly nice to see something going up," study lead author Zoë Doubleday, a marine biologist at the University of Adelaide, tells The Christian Science Mo..>> view originalOh Gee, Another Terrible Consequence Of Antibiotics In Farm Animals
In case you weren’t already convinced that overuse of antibiotics in livestock is a bad, bad, bad idea — a recent study offers a new reason to scale back on them: climate change. An international research team found that dung from cattle treated with a commonly used antibiotic gave off a little less than double the amount of methane of antibiotic-free dung. Their work was published Thursday in the science journal Proceedings Of the Royal Society B. Scientists tested dung from 10 cows. Five of th..>> view original
Thursday, May 26, 2016
Supermassive black holes cause galactic-scale warming and other top stories.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment