October 1, 2013
Mohenjo
Science
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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 7, 2013
Mohenjo
Science
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NASA will launch a new spacecraft tonight (Sept. 6) to unlock the mysteries of moon dust and the wispy lunar atmosphere, and you can watch the blastoff live online.
The space agency’s Lunar Atmosphere and Dust Environment Explorer, nicknamed LADEE, is poised to liftoff atop a brand-new Minotaur V rocket from Wallops Island, Va., at 11:27 p.m. EDT (0327 Sept. 7 GMT) in what will be the first-ever lunar mission to launch from Virginia. Weather permitting, the nighttime launch may be visible to millions of observers along a wide swath of the U.S. East Coast that stretches from Maine to North Carolina.
But for observers outside the viewing area, NASA has two webcasts to offer live video views of tonight’s planned moon shot. You can watch the LADEE launch live on SPACE.com beginning at 9:30 p.m. EDT (0130 GMT), courtesy of NASA TV.
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August 28, 2013
Mohenjo
Science
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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 22, 2013
Mohenjo
Science
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Stargazers are thrilled over the surprise appearance of a star explosion, known as a nova, in the night sky last week, but there is more to this cosmic event than meets the eye.
The new Nova Delphinus 2013 was first spotted in the constellation Delphinus (The Dolphin) by Japanese amateur astronomer Koichi Itagaki on Aug. 14 and quickly confirmed by other skywatchers soon after. Novas are stars that are undergoing a powerful eruption, causing them to brighten significantly, so that they appear suddenly in the night sky where previously no star was visible.
Since its discovery, this nova has brightened rapidly to become an object visible to the naked eye, though stargazers will need to be away from city lights in order to see it clearly
Just how frequently does a nova become bright enough to be seen without the use of binoculars or a telescope?
On average, new novas are detected about once every four or five years. Over the last 112 years, there have been 47 novas that have flared into naked-eye view. The majority of these — 26 — were quite dim and could only be positively identified by using a star chart or sky atlas.
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Photographer Justin Ng photographed Nova Delphinus 2013 on August 18, 2013. He is based in Singapore.
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August 22, 2013
Mohenjo
Science
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Ancient Egyptian beads found in a 5,000-year-old tomb were made from iron meteorites that fell to Earth from space, according to a new study. The beads, which are the oldest known iron artifacts in the world, were crafted roughly 2,000 years before Egypt’s Iron Age.
In 1911, nine tube-shaped beads were excavated from an ancient cemetery near the village of el-Gerzeh, which is located south of Cairo, said study lead author Thilo Rehren, a professor at UCL Qatar, a Western Asian outpost of the University College London’s Institute of Archaeology. The tomb dates back to approximately 3200 B.C., the researchers said.
Inside the tomb, which belonged to a teenage boy, the iron beads were strung together into a necklace alongside other exotic materials, including gold and gemstones. Early tests of the beads’ composition revealed curiously high concentrations of nickel, a telltale signature of iron meteorites.
“Even 100 years ago, [the beads] attracted attention as being something strange,” Rehren told LiveScience.
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July 24, 2013
Mohenjo
Science
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Forty-four years (and three days) after it helped launch the first men to walk on the moon, a huge rocket engine part salvaged from the ocean floor has been positively identified as a historic component of the Apollo 11 lunar landing mission.
“I’m thrilled to share some exciting news,” Amazon.com founder and CEO Jeff Bezos wrote Friday (July 19) on his Bezos Expeditions website. “44 years ago tomorrow [July 20] Neil Armstrong stepped onto the moon, and now we have recovered a critical technological marvel that made it all possible.”
In March 2012, the billionaire entrepreneur underwrote a private — and secret — expedition to find and recover the Apollo engines that launched astronauts Armstrong, Buzz Aldrin and Michael Collins to the moon.
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July 12, 2013
Mohenjo
Science
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NASA can prove it now. Our solar system has a tail, just like comets.
Scientists revealed images Wednesday showing the tail emanating from the bullet-shaped region of space under the grip of the sun, including the solar system and beyond. The region is known as the heliosphere, thus the name heliotail.
The findings are based on data from by NASA’s Interstellar Boundary Explorer, or IBEX. The Earth-orbiting spacecraft was launched in 2008.
Scientists always presumed the heliosphere had a tail, but this provides the first real data on the shape.
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June 30, 2013
Mohenjo
Science
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The habitable zone of a nearby star is filled to the brim with planets that could support alien life, scientists announced today (June 25).
An international team of scientists found a record-breaking three potentially habitable planets around the star Gliese 667C, a star 22 light-years from Earth that is orbited by at least six planets, and possibly as many as seven, researchers said. The three planet contenders for alien life are in the star’s “habitable zone” — the temperature region around the star where liquid water could exist. Gliese 667C is part of a three-star system, so the planets could see three suns in their daytime skies.
The three potentially rocky planets in Gliese 667C’s habitable zone are known as super-Earths — exoplanets that are less massive than Neptune but more massive than Earth. Their orbits make them possible candidates for hosting life, officials from the European Southern Observatory said in a statement.
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June 30, 2013
Mohenjo
Science
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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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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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