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The Mutating Mars Hoax
پنجشنبه 4 شهریورماه سال 1389 19:02
August 25, 2010: It spreads, it mutates, it refuses to die. For the seventh year in a row, the Mars Hoax is infecting email boxes around the world. Passed from one reader to another, the message states that on August 27th Mars will approach Earth and swell to the size of a full Moon. "NO ONE ALIVE TODAY WILL EVER...
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Pulverized Planet Dust May Lie Around Double Stars
پنجشنبه 4 شهریورماه سال 1389 18:58
PASADENA, Calif. -- Tight double-star systems might not be the best places for life to spring up, according to a new study using data from NASA's Spitzer Space Telescope. The infrared observatory spotted a surprisingly large amount of dust around three mature, close-orbiting star pairs. Where did the dust come from?...
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Cosmic Lens Used to Probe Dark Energy for First Time
پنجشنبه 4 شهریورماه سال 1389 18:44
August 19, 2010 __JPL_CAPTION_1 › Browse version of image --> PASADENA, Calif. -- Astronomers have devised a new method for measuring perhaps the greatest puzzle of our universe -- dark energy. This mysterious force, discovered in 1998, is pushing our universe apart at ever-increasing speeds... (Read the rest...
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Countdown to Vesta
پنجشنبه 4 شهریورماه سال 1389 18:34
August 19, 2010: Let the countdown begin. NASA's Dawn spacecraft is less than one year away from giant asteroid Vesta. "There's nothing more exciting than revealing an unexplored, alien world," says Marc Rayman, Dawn's chief engineer at the Jet Propulsion Laboratory. "Vesta," he predicts, "is...
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Mud Volcanoes on Mars
پنجشنبه 28 مردادماه سال 1389 19:30
If life does – or did – exist on Mars, signs of such life might well be found in a region in the northern plains called Acidalia Planitia, according to a new study. The region appears to be dotted with what scientists believe are geological structures known as mud volcanoes, spewing out muddy sediments from...
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Galaxies' Glory Days Revealed
پنجشنبه 28 مردادماه سال 1389 19:27
August 18, 2010 __JPL_CAPTION_1 › Browse version of image --> Astronomers have experienced the galactic equivalent of discovering pictures of a mild-mannered grandmother partying as a wild youth. New observations from NASA's Spitzer Space Telescope reveal the early "wild" days of galaxy clusters -- a...
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IBEX Spacecraft Finds Discoveries Close to Home
پنجشنبه 28 مردادماه سال 1389 19:24
Imagine floating 35,000 miles above the sunny side of Earth. Our home planet gleams below, a majestic whorl of color and texture. All seems calm around you. With no satellites or space debris to dodge, you can just relax and enjoy the black emptiness of space... (Read the rest of...
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GRIP 'Shakedown' Flight Planned over Gulf Coast
پنجشنبه 28 مردادماه سال 1389 19:21
The first flight of NASA's hurricane airborne research mission is scheduled to take off from Ft. Lauderdale, Fla., on Tuesday, Aug. 17. NASA's DC-8 research aircraft will be making a planned five-hour flight along the Gulf Coast from western Florida to Louisiana primarily as a practice run for the many scientific...
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Fermi Detects 'Shocking' Surprise from Supernova's Little Cousin
پنجشنبه 28 مردادماه سال 1389 19:17
Astronomers using NASA's Fermi Gamma-ray Space Telescope have detected gamma-rays from a nova for the first time, a finding that stunned observers and theorists alike. The discovery overturns the notion that novae explosions lack the power to emit such high-energy radiation... (Read the rest of...
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Move Over Caravaggio: Cassini's Light and Dark Moons
پنجشنبه 28 مردادماه سال 1389 19:12
August 16, 2010 __JPL_CAPTION_1 › Browse version of image --> NASA's Cassini spacecraft has returned Saturnian moon images from its flyby late last week, revealing light and dark contrasts worthy of chiaroscuro painters like Caravaggio. The flyby on August 13 targeted the geyser moon Enceladus, but also brought...
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IBEX Maps the Boundaries
پنجشنبه 28 مردادماه سال 1389 19:06
Since its October 2008 launch, NASA's Interstellar Boundary Explorer ( IBEX ) spacecraft has mapped the invisible interactions occurring at the edge of the solar system. The images reveal that the interactions between our home in the galaxy and interstellar space are surprisingly structured and intense... (Read the...
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Japanese Spacecraft Approaches Venus
پنجشنبه 28 مردادماه سال 1389 19:02
August 16, 2010: For the next few months, Venus will be softly resplendent in the evening sky, a treat for stargazers – but looks can be deceiving. Consider this: The Venusian surface is hot enough to melt lead. The planet's 96% carbon dioxide atmosphere is thick and steamy with a corrosive mist of sulfuric acid...
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Where in the World is Europa
پنجشنبه 28 مردادماه سال 1389 18:53
Instead of flying to Europa without first testing what a mission there might experience, now a number of sites on Earth — and beyond — that mimic the Jovian moon are being uncovered that could help explorers conduct trial runs. Missions to Mars such as the Mars Exploration Rovers were exhaustively field-tested in...
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Cassini Bags Enceladus 'Tigers'
پنجشنبه 28 مردادماه سال 1389 18:50
August 14, 2010 __JPL_CAPTION_1 › Browse version of image --> NASA's Cassini spacecraft has successfully completed its flyby over the "tiger stripes" in the south polar region of Saturn's moon Enceladus and has sent back images of its passage. The spacecraft also targeted the moon Tethys... (Read the...
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NASA Releases New Image of Massive Greenland Iceberg
پنجشنبه 28 مردادماه سال 1389 18:46
August 12, 2010 __JPL_CAPTION_1 › Browse version of image --> On Aug. 5, 2010, an enormous chunk of ice, about 251 square kilometers (97 square miles) in size, or roughly four times the size of Manhattan, broke off the Petermann Glacier along the northwestern coast of Greenland. The Petermann Glacier lost about...
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Cassini Hunting Enceladus 'Tigers' with Night Vision
پنجشنبه 28 مردادماه سال 1389 18:43
August 12, 2010 __JPL_CAPTION_1 › Browse version of image __JPL_CAPTION_2 › Browse version of image --> NASA's Cassini spacecraft will be hunting for heat signatures at the "tiger stripes" in the dim south polar region of Saturn's moon Enceladus on Friday, Aug. 13. The closest approach will...
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Raisin' Mountains on Saturn's Moon Titan
پنجشنبه 28 مردادماه سال 1389 18:40
August 12, 2010 __JPL_CAPTION_1 › Browse version of image __JPL_CAPTION_2 › Browse version of image __JPL_CAPTION_3 › Browse version of image --> Saturn's moon Titan ripples with mountains, and scientists have been trying to figure out how they form. The best explanation, it turns out, is that...
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Supernova’s Spin on Life
پنجشنبه 28 مردادماه سال 1389 18:37
A mysterious bias in the way the building blocks of proteins twist could be due to supernovae, researchers now suggest. If correct, this could be evidence that the molecules of life weren't created on Earth, but came from elsewhere in the cosmos. Organic molecules are often chiral, meaning they come in two versions...
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NASA Video Shows Global Reach of Pollution from Fires
پنجشنبه 28 مردادماه سال 1389 18:31
August 11, 2010 __JPL_CAPTION_1 › Browse version of image -->A series of large wildfires burning across western and central Russia, eastern Siberia and western Canada has created a noxious soup of air pollution that is affecting life far beyond national borders. Among the pollutants created by wildfires is...
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Giant Ultraviolet Rings Found in Resurrected Galaxies
پنجشنبه 28 مردادماه سال 1389 18:26
August 11, 2010 Astronomers have found mysterious, giant loops of ultraviolet light in aged, massive galaxies, which seem to have a second lease on life. Somehow these "over-the-hill galaxies" have been infused with fresh gas to form new stars that power these truly gargantuan rings, some of which could...
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NASA's HIRAD Instrument to Provide Unique View of Hurricane Wind
پنجشنبه 28 مردادماه سال 1389 18:21
NASA researchers are furiously preparing for late summer when they will fly a series of unique hurricane instruments, including a brand new instrument that will take two-dimensional wind speed measurements over some of the world's fiercest storms... (Read the rest of...
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Hundreds of New Views from Telescope Orbiting Mars
پنجشنبه 14 مردادماه سال 1389 19:56
August 04, 2010 __JPL_CAPTION_1 › Browse version of image -->The latest set of new images from the telescopic High Resolution Imaging Science Experiment Camera on NASA's Mars Reconnaissance Orbiter offers detailed views of diverse Martian landscapes... (Read the rest of...
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NASA Lightning Research Happens in a Flash
پنجشنبه 14 مردادماه سال 1389 19:53
Lightning's connection to hurricane intensification has eluded researchers for decades, and for a riveting 40 days this summer, NASA lightning researchers will peer inside storms in a way they never have before. Earth scientists and engineers at NASA's Marshall Space Flight Center in Huntsville, Ala., will soon fly...
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NASA Chat: Perseid Meteor Shower Lights Up August Skies
پنجشنبه 14 مردادماه سال 1389 19:50
Looking for a little excitement as the summer draws to a close? This year's Perseid meteor shower peaks on Aug. 12-13, and it promises to be one of the best displays of the year. If forecasters are correct, the shower should produce a peak display of at least 80 meteors per hours. A waxing crescent moon will set...
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This Month in Exploration - August
پنجشنبه 14 مردادماه سال 1389 19:48
From the early days of experimental airplanes to NASA’s soaring space shuttles, the evolution of flight has mirrored the evolution of society. The ongoing scientific discoveries that are part of aeronautics and space flight have improved life on Earth and allowed humans to begin investigating the secrets of the...
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Coronal Mass Ejection Headed for Earth
پنجشنبه 14 مردادماه سال 1389 19:45
On August 1st around 0855 UT, Earth orbiting satellites detected a C3-class solar flare. The origin of the blast was Earth-facing sunspot 1092. C-class solar flares are small (when compared to X and M-class flares) and usually have few noticeable consequences here on Earth besides aurorae. This one has spawned a...
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NASA and ESA's First Joint Mission to Mars Selects Instruments
پنجشنبه 14 مردادماه سال 1389 19:42
PASADENA, Calif. -- NASA and the European Space Agency (ESA) have embarked on a joint program to explore Mars in the coming decades and selected the five science instruments for the first mission. The principal investigator for one of the instruments, and the management for NASA's roles in the mission, are based at...
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Taking a Shot at the Sun
پنجشنبه 14 مردادماه سال 1389 19:38
For a thrilling eight minutes, NASA researchers will soon get a peek at one of the sun's most mysterious regions, where temperatures fluctuate from tens of thousands of degrees Fahrenheit to several million, and solar flares and coronal mass ejections originate -- potentially threatening spacecraft, Earth-based...
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NASA's ATHLETE Warms Up for High Desert Run
پنجشنبه 14 مردادماه سال 1389 19:33
Engineers from NASA's Jet Propulsion Laboratory are currently putting their All-Terrain, Hex-Limbed, Extra-Terrestrial Explorer (ATHLETE) through a series of long-drive tests on the long, dirt roads found adjacent to JPL. The JPL grounds do not include an unpaved area of sufficient size for testing such a large robot...
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Spirit May Never Phone Home Again
پنجشنبه 14 مردادماه سال 1389 19:24
July 30, 2010: NASA mission controllers have not heard from Mars rover Spirit since March 22 as the rover faces its toughest challenge yet - trying to survive the harsh Martian winter. On July 26, mission managers began using a paging technique called "sweep and beep" in an effort to communicate with...