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Perseid Radio Astronomy from the Fourth Plinth With Chris Lintot
دوشنبه 26 مردادماه سال 1388 20:58
Perseid Radio Fireball by Andy Smith - G7IZU Within hours, the peak of the annual Perseid meteor shower will begin. If you're worried you'll be clouded out, then let's take a look at a different way that you can observe the activity… without your eyes! (...) Read the rest of Perseid Radio Astronomy from the Fourth...
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Watching Science in Action on Mars
دوشنبه 26 مردادماه سال 1388 20:56
One of the great things about the Mars Exploration Rovers is that we get to see these scrappy little vehicles ramble across the surface of Mars , and watch science in action. Case in point: the meteorite found by Opportunity, dubbed "Block Island." Scientists are debating all sorts of things about this...
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2009 Perseid Meteor Shower – Double Peaks This Year!
دوشنبه 26 مردادماه سال 1388 20:52
2009 Perseid Meteor Shower Preview by John Chumack Are you ready for this year's Perseid Meteor Shower? What will be the best place to watch and when will be the best date to see the most "shooting stars "? Follow along and let's find out… (...) Read the rest of 2009 Perseid Meteor Shower – Double Peaks This...
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Early Black Holes Are Starving, Not Feasting
دوشنبه 26 مردادماه سال 1388 20:50
Credit: KIPAC/SLAC/M. Alvarez, T. Abel and J. Wise A new black hole may not voraciously devour nearby gas — because it may kick out most of the gas in its neighborhood, a new study shows. (...) Read the rest of Early Black Holes Are Starving, Not Feasting (508 words)
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Sun, Earth Are Unlikely Pair to Support Life
دوشنبه 26 مردادماه سال 1388 20:48
The violent youth of solar proxies. Courtesy of IAU. We don't know how lucky we are — really. We know the interaction between Earth and the Sun is a rarity in that it allowed life to form. But scientists working to understand the possibility that it could have happened elsewhere in the Universe are still far from...
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NASA Science News for August 10, 2009
دوشنبه 26 مردادماه سال 1388 20:45
Like bugs streaking down the side window of a moving car, colorful Perseid Earthgrazers could put on a pleasing show after sunset on Tuesday, August 11th. FULL STORY at http://science.nasa.gov/headlines/y2009/10aug_horseflies.htm?list1035898
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NASA Science News for August 7, 2009
دوشنبه 26 مردادماه سال 1388 20:41
The International Space Station's new "space porch" is open for business. Barely two weeks after it was installed by the crew of space shuttle Endeavour , the Japanese-built platform is already bustling with experiments in astronomy and space physics--and that's just for starters. FULL STORY at...
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Near-Earth Object Has Two Moons
دوشنبه 26 مردادماه سال 1388 20:40
Radar images have shown that a near-Earth object is actually a triple system; an asteroid with two small moons. NASA's Goldstone Solar System Radar on June 12 and 14, 2009, revealed the new informaton about Asteroid 1994 CC. It came within 2.52 million kilometers (1.56 million miles) on June 10. Prior to the flyby,...
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Red Hot News… Possible Nova in Sagittarius!
دوشنبه 26 مردادماه سال 1388 20:38
According to AAVSO Special Notice #164 just sent, there is a possible nova candidate in Sagittarius. It was discovered by Koichi Nishiyama, Kurume, Fukuoka-ken, Japan, and Fujio Kabashima, Miyaki-cho, Saga-ken, Japan, at unfiltered magnitude 7.7 on two 60-second frames taken Aug. 6.494 and 6.495 UT. They confirmed the...
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IYA Live Telescope Today: M11 and 47 Tucanae
دوشنبه 26 مردادماه سال 1388 20:36
Did you get a chance to check out the IYA "Live" Telescope today? After a prolonged period of clouds and bad weather in Central Victoria, we at least had a partially clear night. Our two objects for the evening were Messier 11 and stunning globular cluster 47 Tucanae. If you didn't get a chance to see them,...
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Titan Shaping Up to Look a Lot Like Pre-Life Earth
جمعه 16 مردادماه سال 1388 20:08
It's more than a billion kilometers (759 million miles) away, but the more astronomers learn about Titan, the more it looks like Earth . That's the theme of two talks happening this week at the International Astronomical Union meeting in Rio de Janeiro, Brazil. Two NASA researchers, Rosaly Lopes and Robert M. Nelson...
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Ares I-X Comes Together (and it is BIG)
جمعه 16 مردادماه سال 1388 20:06
The Ares I-X is stacked in NASA's Vehicle Assembly Building. Credit: NASA The Ares I-X rocket is being stacked on the Mobile Launch Platform in NASA's Vehicle Assembly Building in preparation for the rocket's first test flight, scheduled for October 31, 2009. The "super stack 1" was mated to the forward...
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New View Toward Carina Reveals Star Fest, Exploding "Engine"
جمعه 16 مردادماه سال 1388 20:05
A remarkable new view of the Milky Way toward the constellation Carina is alive with a flurry of stars — and the pièce de résistance is a binary star that's all dressed up in a nebula of its own making. The European Southern Observatory (ESO) released the new images this week. (...) Read the rest of New View Toward...
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There Was a Reason Discovery's Rollout Took Longer Than Usual…
جمعه 16 مردادماه سال 1388 20:04
Lightning flashes during Discovery's rollout on Tuesday. Credit: NASA Yikes! No wonder the rollout of space shuttle Discovery took a little bit longer than usual. Lightning lit up the sky above Kennedy Space Center early Tuesday morning, providing a stunning backdrop for the shuttle's crawl to the launchpad. Usually...
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Hubble, Gemini Spot 'Hyperactive' Stars in Small, Young Galaxies
جمعه 16 مردادماه سال 1388 20:03
We all know youngsters are a handful, but this really takes the cake: astronomers have clocked the speeds of stars in infant galaxies at about a million miles an hour, about twice the pace of our Sun's cruise through the Milky Way . The small galaxies date to 11 billion years ago, when the universe was just a couple...
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Half Comet-Half Asteroid a Fluke? Nope
جمعه 16 مردادماه سال 1388 20:02
Back in 1996, astronomers discovered a strange object in the asteroid belt. They decided it was either a "lost" comet or an icy asteroid, as it ejected dust like a comet but had an orbit like an asteroid. No one had ever seen anything like the object, called 133P. Ever since it was found, astronomers have...
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LCROSS Sees Life on Earth
جمعه 16 مردادماه سال 1388 20:00
LCROSS UV/Visible spectrum. Credit: NASA The LCROSS spacecraft took a look back at Earth , and guess what it saw? Evidence of intelligence? Not so much. But it did see evidence of life. On Aug. 1, 2009, the LCROSS spacecraft took a gander at Earth to help calibrate and test its science payload. During the Earth...
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Plains of Titan to be Named for "Dune" Novels
جمعه 16 مردادماه سال 1388 19:55
Titan's mysterious dark plains will be named after planets in the series of "Dune" science fiction novels by author Frank Herbert . The US Geological Survey Astrogeology Science Center announced the first plain or "planitia" given a name will be designated as Chusuk Planitia. Chusuk was a planet...
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Astro Art of the Week: Dragon Vs. Eagle
جمعه 16 مردادماه سال 1388 19:54
Dragon Vs. Eagle. Credit: Wienie van der Oord Here's the fourth installment of our new feature, showcasing our readers' prowess with image editing software . This week's Astro Art of the Week is a showdown of cosmic proportions: "Dragon Versus Eagle" was submitted by Wienie van der Oord from Negev Desert in...
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How Many Galaxies Have We Discovered?
جمعه 16 مردادماه سال 1388 19:53
Hubble Ultra Deep Field. Credit: NASA Astronomers think that there are hundreds of billions galaxies in the universe , however the exact number is not known. But astronomers should know how many galaxies we've actually seen and discovered, right? Well, not necessarily. “We don’t know,” says Ed Churchwell, professor of...
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Opportunity Spies Unusual Rock — Large Meteorite?
جمعه 16 مردادماه سال 1388 19:47
'Block Island,' an odd-shaped, dark rock, which may be a meteorite. Credit: NASA/JPL The Opportunity rover has come across an odd-shaped, large, dark rock, about 0.6 meters (2 feet) across on the surface of Mars , which may be a meteorite. The rover team spotted the rock called "Block Island," on July 18,...
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Top Five Celestial Objects Anyone Can See With a Small Telescope
جمعه 16 مردادماه سال 1388 19:46
Popular Mechanics has a great series of articles today on amateur astronomy , including Affordable Ways to Become an Amateur Astronomer, and How to Computerize Your Telescope. But my favorite is the T op Five Galactic Bodies Anyone Can See With a Cheap Telescope . Number one on the list is the Orion Nebula, above....
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Sub-surface Oceans In Early Comets Suggest Possible Origin of Li
جمعه 16 مردادماه سال 1388 19:36
A view of NASA's Deep Impact probe colliding with comet Tempel 1, captured by the Deep Impact flyby spacecraft's high-resolution instrument. A new study claims early comets contained vast interior oceans of liquid water that may have provided the ideal conditions for early life to form. (...) Read the rest of...
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Galaxies Bring Dancing With the Stars to New Level
جمعه 16 مردادماه سال 1388 19:35
What is small, mysterious, faint, in the process of losing mass, and can dance like crazy? Could it be Marie Osmond? Well, that might be the correct answer in this galaxy , but just on the outskirts of the Milky Way are small, mysterious galaxies called dwarf spheroidal galaxies, and a new study offers an explanation...
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Newly Discovered Cometary Route Sneaks Past Jupiter, but Decreas
جمعه 16 مردادماه سال 1388 19:34
Astronomers have used the comet record — including 2001 RX14 (Linear) at left, captured in 2002 by the Sloan Digital Sky Survey — to model a new route for incoming comets that sneaks past Jupiter's gravity . The pathway might even be the dominant one that delivers Oort Could comets on an Earth -bound trajectory, say...
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NASA Science News for August 6, 2009
جمعه 16 مردادماه سال 1388 19:29
NASA 's new planet-hunting Kepler space telescope has detected the changing phases and atmosphere of a planet a thousand light years away. FULL STORY at http://science.nasa.gov/headlines/y2009/06aug_kepler2.htm?list1035898
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NASA Science News for August 3, 2009
جمعه 16 مردادماه سال 1388 19:28
Two weeks after something slammed into Jupiter , creating a cloud of debris that is still easy to see through backyard telescopes, researchers are wondering ... what was the impactor? FULL STORY at http://science.nasa.gov/headlines/y2009/03aug_whathitjupiter.htm?list1035898
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NASA Science News for July 31, 2009
جمعه 16 مردادماه سال 1388 19:27
Earth is entering a stream of debris from Comet Swift-Tuttle, setting the stage for the 2009 Perseid meteor shower . FULL STORY at http://science.nasa.gov/headlines/y2009/31jul_perseids2009.htm?list1035898
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Declassified Ice Loss Images
چهارشنبه 7 مردادماه سال 1388 21:10
Ice loss in Barrow Alaska from 2006 to 2007. Credit: US Geological Survey Last week the US government released more than a thousand intelligence images of Arctic ice that have been used to help scientists study the impact of climate change . The images were taken by spy satellites , as part of the Medea program, which...
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Giant Soap Bubble In Space
چهارشنبه 7 مردادماه سال 1388 21:07
The Cygnus Bubble. Credit: T. A. Rector/University of Alaska Anchorage, H. Schweiker/WIYN and NOAO/AURA/NSF What looks like a giant soap bubble or even perhaps just a water drop on a camera lens is actually a newly discovered planetary nebula. Dave Jurasevich of the Mount Wilson Observatory in California spotted the...