February 11, 2014
Mohenjo
Science
amazon, biology, business, Business News, Earth, Future Mass Extinction, Giant Rats, Hotels, huffingtonpost, human-rights, mass extinction, Mass extinctions, medicine, mental-health, Oversized Rats, Rats, Rats Earth, Rats Take Over, Rats Take Over Earth, research, Science, Science News, Slideshow, technology, Technology News, travel, vacation, Weird Science
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In the event of a future mass extinction, rats may be the animals best suited to repopulate the world, some scientists say.
And if rats did “take over” after such a wipeout, they’d likely balloon in size, scientists also say.
Mass extinctions have hit the Earth at least five times in geologic history, most recently about 65 million years ago, when scientists think an asteroid hit the planet and wiped out the dinosaurs. Mammals took advantage of the newly available ecological space and ultimately repopulated and dominated the animal kingdom.
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Scientists say that after a mass extinction, oversized rats may repopulate Earth. | Simon Flint via Getty Images
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November 10, 2013
Mohenjo
Science
Alien Planets, amazon, Astronomy, business, Business News, Earth, Earth Sized Planets, Earth Sized Planets Common, Earthlike Planets, Erik Petigura, Exoplanets, habitable planet, Habitable Planets, Habitable Planets Common, Health, Hotels, huffingtonpost, human-rights, Kepler, Kepler Space Telescope, Kepler spacecraft, Kepler Telescope, medicine, mental-health, NASA, planet, Planets, Planets Like Earth, research, Science, Science News, Slideshow, Space, Space Program, technology, Technology News, travel, vacation, Video
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Habitable alien planets similar to Earth may not be that rare in the universe, a new study suggests.
About one in five sunlike stars observed by NASA’s planet-hunting Kepler spacecraft has an Earth-size planet in the so-called habitable zone, where liquid water — and, potentially life — could exist, according to the new study. If these results apply elsewhere in the galaxy, the nearest such planet could be just 12 light-years away.
“Human beings have been looking at the stars for thousands of years,” said study researcher Erik Petigura, a graduate student at the University of California, Berkeley (UC Berkeley). “How many of those stars have planets that are in some way like Earth? We’re very excited today to start to answer that question,” Petigura told SPACE.com. [9 Exoplanets That Could Host Alien Life]
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October 1, 2013
Mohenjo
Science
amazon, business, Business News, Curiosity, Curiosity Rover, Earth, Future Mars explorers, Health, Hotels, huffingtonpost, human-rights, Jake Matijevic, Laurie Leshin, Mars, Mars Curiosity Rover, Mars Rock, Mars Rocks, Mars Rover, Mars Rover Curiosity, Mars Water, medicine, mental-health, NASA, politics, Rensselaer Polytechnic Institute, research, Science, Science News, Search for E.T., Slideshow, Space, Space Program, technology, Technology News, the Red Planet, travel, vacation, Video, Water Mars, Water On Mars
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Future Mars explorers may be able to get all the water they need out of the red dirt beneath their boots, a new study suggests.
NASA’s Mars rover Curiosity has found that surface soil on the Red Planet contains about 2 percent water by weight. That means astronaut pioneers could extract roughly 2 pints (1 liter) of water out of every cubic foot (0.03 cubic meters) of Martian dirt they dig up, said study lead author Laurie Leshin, of Rensselaer Polytechnic Institute in Troy, N.Y.
“For me, that was a big ‘wow’ moment,” Leshin told SPACE.com. “I was really happy when we saw that there’s easily accessible water here in the dirt beneath your feet. And it’s probably true anywhere you go on Mars.”
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Curiosity in a mosaic of photos taken by the rover’s Mars Hand Lends Imager on Sol 85, the rover’s 85th Martian day, as Curiosity was sampling rocks at a stop dubbed Rocknest in Gale Crater. Image released Sept. 26, 2013. | NASA/JPL-Caltech/Malin Space Science Systems
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September 25, 2013
Mohenjo
Science
Afar Rift, amazon, business, Business News, climate, cubic kilometers, Daily Discovery, Earth, Earth Science, Environment, Ethiopia, Geology, Hotels, huffingtonpost, lava bubbles, Magma, Magma Blob, Magma Ethiopia, research, Science, Science News, Slideshow, technology, Technology News, travel, Underground Magma, University of Edinburgh, vacation, volcanic ridges
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The Afar Rift in Ethiopia is marked by enormous gashes that signal the breakup of the African continent and the beginnings of a new ocean basin, scientists think.
The fractures appear eerily similar to seafloor spreading centers, the volcanic ridges that mark the boundaries between two pieces of oceanic crust. Along the ridges, lava bubbles up and new crust is created, slowly widening the ocean basin.
But a look deep beneath the Afar Rift reveals the birth announcements may be premature. “It’s not as close to fully formed seafloor spreading as we thought,” said Kathy Whaler, a geophysicist at the University of Edinburgh in Scotland.
Whaler and her colleagues have spotted 120 cubic miles (500 cubic kilometers) of magma sitting in the mantle under the Afar Rift. Hot liquids like magma like to rise, so the discovery is a conundrum.
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Erta Ale, active volcano in the Afar Region of northeastern Ethiopia, at dawn. | Getty
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August 28, 2013
Mohenjo
Science
amazon, Ancient Proteins, biology, business, Business News, chemistry, climate, deep sea hydrothermal vents, early earth, Earth, evolution, Fossil Proteins, Fossils, Hotels, html ref, Paleontology, physical chemist, Prehistory, Protein Fossils, research, Science, Science News, Slideshow, Space, Space Rocks, technology, Technology News, travel, university of granada, vacation
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Researchers have reconstructed the structure of 4-billion-year-old proteins.
The primeval proteins, described today (Aug. 8) in the journal Structure, could reveal new insights about the origin of life, said study co-author José Manuel Sanchez Ruíz, a physical chemist at the University of Granada in Spain.
Exactly how life emerged on Earth more than 3 billion years ago is a mystery. Some scientists believe that lightning struck the primordial soup in ammonia-rich oceans, producing the complex molecules that formed the precursors to life. Others believe that chemical reactions at deep-sea hydrothermal vents gave rise to cell membranes and simple cellular pumps. And still others believe that space rocks brought the raw ingredients for life — or perhaps even life itself — to Earth.
But it’s difficult to recreate events that happened so far in the distant past.
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The individual molecules within early Earth’s primordial soup that form the basis of life likely developed in response to natural selection.
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August 4, 2013
Mohenjo
Science
amazon, Astronomy, business, Business News, Cassini, Cassini Earth Photo, Cassini Photo, Cassini Photos, cassini saturn, cassini spacecraft, climate, Earth, earth photos, empty space, European Space Agency, Hotels, huffingtonpost, NASA, NASA News, orbiter images, research, robotic spacecraft, Saturn, saturn orbiter, Science, Science News, Slideshow, Solar System, space photos, Space Program, Spaceflight, technology, Technology News, travel, vacation
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Good photographers go to great lengths to get the best pictures, but few have ventured farther than Cassini did on July 19, 2013. From 5:27 p.m. to 5:42 p.m. EDT on that date, the robotic spacecraft peered across almost 900 million miles of empty space to capture a series of awe-inspiring images of Earth.
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Earth is the dot with the arrow
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http://www.huffingtonpost.com/2013/07/23/cassini-earth-photos-saturn-orbiter-images-planet_n_3637540.html?ref=topbar
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June 30, 2013
Mohenjo
Science
business, dr alexander, Earth, Earth Science, electron microscopy, Environment, Geology, huffingtonpost, iron meteorite, Meteorite Minnesota, Meteorites, minneapolis star tribune, Minnesota Meteorite, Minnesota Space Rock, pound rock, research, Science, Science News, sibley county, Slideshow, Space, Space Rock, Space Rocks, technology, Technology News, travel, vacation, Video
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Farmers expect to reap what they sow. So it was quite a surprise when Bruce Lilienthal found a meteorite half-buried in a field on his farm in Minnesota’s Sibley County, the Minneapolis Star Tribune reported.
“We didn’t know what it was at first,” Lilienthal said of the flat, oddly heavy rock in an interview with KEYC-TV.
“We’ve done enough tests to be sure it’s a meteorite,” Dr. Calvin Alexander, a meteorite expert and professor of earth sciences at the University of Minnesota, told the Star Tribune. “It is not part of the Earth. It fell out of the sky.”
Dr. Alexander told The Huffington Post in an email that he examined the 33-pound rock at his office in Minneapolis on May 30, after Lilienthal and his wife brought it in. A variety of tests — including chemical analysis and electron microscopy — convinced him that what he calls the “Lilienthal object” is an iron meteorite.
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http://www.huffingtonpost.com/2013/06/25/minnesota-meteorite-farmer-bruce-lilienthal-space-rock-video_n_3492041.html?ref=topbar
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June 25, 2013
Mohenjo
Science
2013 Supermoon, amazon, Astronomy, business, celestial phenomenon, Earth, Environment, full moon, Hotels, html ref, huffingtonpost, Moon, NASA, research, Science, Science News, skywatchers, Slideshow, Solar System, Space, spectacular images, submit photos, Supermoon, Supermoon 2013, Supermoon Images, Supermoon June 2013, Supermoon Photos, Supermoon Photos 2013, Supermoon Pictures, technology, Technology News, travel, vacation, Video
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Did you get a chance to see the supermoon? Don’t worry if you didn’t. In our gallery of supermoon photos (see below), you can page through scores and scores of spectacular images — snapped by skywatchers around the world. Many were collected during our supermoon live blog, which has now concluded.
But there’s still time to submit any photos you might have snapped of the dazzling celestial phenomenon. You can tweet them to us using the #HPsupermoon hashtag, or submit them directly in the gallery.
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http://www.huffingtonpost.com/2013/06/23/supermoon-2013-photos-biggest-full-moon-slideshow_n_3487882.html?ref=topbar
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April 10, 2013
Mohenjo
Science
4.56 billion years old, amazon, annual Lunar & Planetary Science Conference, anthony irving, Asteroids, business, climate, Earth, Green Meteorite, Hotels, huffingtonpost, innermost planet, lunar and planetary science conference, Mars, Mercury, Mercury Meteorite, Meteorite, meteorite samples, Meteorites, NASA, NWA 7325, planetary science conference, Planets, research, Science, Science News, Slideshow, Solar System, Space, Space Rocks, technology, Technology News, Texas, The Woodlands, travel, vacation, Video
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Scientists may have discovered the first meteorite from Mercury.
The green rock found in Morocco last year may be the first known visitor from the solar system’s innermost planet, according to meteorite scientist Anthony Irving, who unveiled the new findings this month at the 44th annual Lunar and Planetary Science Conference in The Woodlands, Texas. The study suggests that a space rock called NWA 7325 came from Mercury, and not an asteroid or Mars.
NWA 7325 is actually a group of 35 meteorite samples discovered in 2012 in Morocco. They are ancient, with Irving and his team dating the rocks to an age of about 4.56 billion years.
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http://www.huffingtonpost.com/2013/03/31/mercury-meteorite-green-rock-morocco_n_2979678.html?utm_hp_ref=mostpopular
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February 25, 2013
Mohenjo
Science
amazon, aspects of weather behave chaotically, business, climate, Daily Discovery, Earth, gaming, gravity, gravity wave, Gravity Waves, Hotels, huffingtonpost, linear manner, nonlinear manner, nonlinearity, Physics, research, Science, Science News, Star Shaped Gravity Waves, technology, Technology News, travel, vacation, Video, videogames, weather, Weird Science
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Star-shaped waves can form in vibrating tanks of liquid oil, researchers say.
Learning more about such bizarre waves could shed light on counterparts that may exist elsewhere in nature, researchers added.
Waves of all kinds often behave in an intuitively linear manner. For instance, a weight on a spring will bob up and down in a manner directly proportional to the force that the weight exerts on the spring.
However, a number of strange waves can also form. They come from what is called nonlinearity, in which a small or simple change results in a disproportionately large or complex effect. For instance, aspects of weather behave chaotically, in a nonlinear manner.
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Researchers have discovered a new type of gravity wave, one that is shaped like a star. Such bizarre waves result from a property called nonlinearity, in which a small or simple change results in a disproportionately large or complex effect. For instance, aspects of weather behave chaotically, in a nonlinear manner.
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http://www.huffingtonpost.com/2013/02/23/star-shaped-gravity-waves-physicists-france_n_2744664.html?ref=topbar
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