Category: Science

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  • Aurora Borealis in Greenland: Jupiter and the Big Dipper visible in a stunning photo

    Aurora Borealis, Jupiter and Big Dipper (Plough) captured in the same image!

    NASA's picture of the Day: Aurora Borealis snapped by Juan Carlos Casado from Greenland.Photo: nasa.gov
    Photographer Juan Carlos Casado, who is currently on an expedition in Greenland, was able to capture this incredible image of an Aurora Borealis (Northern Lights) over the weekend. Casado​ On the other hand, interrupted sleep affects brain generic cialis chemistry, mood and causes stress. women viagra australia Wear a hospital gown and sign the consent form. However, Pur3X offers a healthy alternative to the world’s best-selling erectile dysfunction medications. generico viagra on line tonysplate.com generico cialis on line Mental disturbance including stress is re everywhere. took the picture, which was named the “astronomical picture of the day at NASA,” on a camp in southern Greenland.

    The photograph shows the aurora extending along the entire horizon and the Moon on the right side of the picture, according to description given by NASA. Jupiter is also visible at the right of the Moon and the Big Dipper can be spotted in the middle of Aurora phenomenon.

  • Video: 5.9 magnitude earthquake hits Washington: Pentagon and Capitol building evacuated

    An initial 5.8 earthquake was felt on the eastern coast of the U.S., several buildings in Washington being well shaken (scroll down for video report).

    According to the USGS, the earthquake epicenter was located near the town of Mineral, Virginia state, at a distance of about 130 kilometers from the U.S. capital. The quake occurred at a depth of about 4.82 km.

    The quake was felt in New York and North Carolina.

    According to Reuters, the Pentagon and the Capitol building in Washington DC have been evacuated following the tremor which according to USGS was revised to magnitude of 5.9.

    See photos from the quake that ripped through US East Coast.
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    JFK and Newark airports control towers were also evacuated due to the earthquake that occurred Tuesday afternoon at 1.51 p.m.

    According to an official from USGS (U.S. Geological Survey), quoted by the Washington Post, there are certainly expected aftershocks.

    “The aftershocks worry us. The people should be expecting them in the coming hour or two. The worst has not happened yet, “said Marcia McNutt, director of USGS.
    Video report: Quake strikes Virginia; tremor felt in Washington, Richmond

  • Kansas tornado as NASA image of the day

    A spectacular picture taken while a tornado swept across Kansas, was designated by NASA as the “picture of the day”.

    Superb snapshot of Kansas tornado appointed as NASA's image of the day
    During a 2004 tornado in Kansas, a photographer captured an extraordinary image. As a result NASA designated this photo as “the picture of the day” because of the unusual lights and colors.

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    The 2004 photograph is special in several aspects, the NASA experts said. There can be noticed the remarkable light provided by the sun that “broke” the black clouds of the storm. Furthermore it looks like the tornado vortex is split from the rainbow.

  • Falcon HTV-2 Hypersonic plane to be tested in USA

    Falcon HTV-2 airplane, which has a speed 20 times faster than the sound is about to perform its test flight in U.S. (scroll down for video)

    The mankind enter new era after testing new generation of hypersonic weapon. Photo:wikipedia.org
    A new weapon that might completely change the war face is tested today in the United States. Featuring a speed of 20 times that of the sound, the Falcon HTV plane that broke away from SF-like movies, could mean entry of the mankind in the super-weapons era.

    Called Falcon HTV-2, the aircraft will be launched into space by a rocket, and then will return to Earth at a speed of about 21,000 kilometers per hour. At 3pm BST on Thursday , the US Defence Advance Research Projects Agency (DARPA) will launch the Falcon Hypersonic Technology Vehicle 2 carried by a rocket from the Vandenberg Air Force Base in California. If everything runs as planned, the military experts will detach the Falcon HTV-2 to the margins of space and set it on a hypersonic flight.

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    Video: Hypersonic Falcon HTV-2 missile to hit anywhere on Earth in less that a hour

  • Theory: Earth life has extraterrestrial origin: DNA brought by meteorites

    DNA elements confirmed to come from outer space. Photo: tgdaily.com
    The biological code of life on Earth, DNA, which underlies all bodies, could have extraterrestrial origin being brought on Earth by meteorites. New research, made previous theory that life on Earth might derive from alien roots to surface again.

    Although the DNA components found in meteorites in the 60s were excluded, being considered the effect of terrestrial contamination of the meteorite fragments, a new analysis suggests that it is very unlikely that adenine, guanine (elements of DNA nucleobases) and other found molecules to originate from Earth.

    Michael Callahan, an astrobiologists at NASA, says that nucleobase components discovered in meteorite fragments are not found together in any terrestrial organism. Comparing the number of nucleobases found in meteorites and those from Antarctic ice, it was observed that the ice provides by far fewer nucleobases and less variations.
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    The team concluded that the DNA components were built in the meteorites, by a non-biological process. Such a process was successfully restored in a laboratory experiment, involving a chemical reaction in which cyanide, ammonia and water were used.

    “We’ve got for the first time three premises that give us reasons to believe that DNA elements were created in space,” said Callahan.

  • Video: Alaska glacier broke in front of tourists

    A glacier in Alaska disintegrated in front of dozens tourists who admired and photographed it.

    The surprise of the guest was quickly replaced by fear. The boat that was carrying the people during the fjord tour was threatened by tsunami waves caused by chunk of ice falling off the glacier into the water.

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    Video: Alaska glacier calving sparks fear among tourists

  • Facebook and Twitter created crazy generation of self obsessed people

    Scientist Susan Greenfield warns about a imminent threat due to long exposure to social networking sites
    It seems that a certain category of people have already migrated from the real world to the virtual one. Facebook and Twitter have led to a self-obsessed generation people, who feature reduced brain concentration capacity and a childish desire of receiving feed-back on everything that happens their lives, says UK scientist Baroness Susan Adele Greenfield in an interview for dailymail.

    Specialized in brain psychology, Baroness Greenfield – professor of pharmacology at Oxford university and former member of the research body of the Britain’s Royal Institution -, says that Facebook or Twitter “friendship” along with computer games have the ability to change the way the brain thinks.

    Chronic exposure to social networks make users with an “identity crisis” behave like an infant who requires the attention of the mother. For such people the real world is practically inexistent and everything what counts is what the others think about them. They want to feel like a kind of VPs admired by others every day.
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    This situation leads to a reduced focussing ability, a need for instant praise and erosion of nonverbal abilities, such as the power to have eye contact while talking.

  • Trojan asteroid to share same orbit with Earth

    Trojan asteroid 2010TK7 travels in front of Earth as both perform orbital motion around Sun.(Paul Wiegert-Univ. of Western Ontario)
    Scientists just figured out that the Moon is not the only company of the Earth in its orbital motion around the Sun. An asteroid, hidden by the intense light of the Sun and sharing the same orbit was recently discovered. It seems that the rock, called 2010TK7, has been “chasing” us for thousands of years without giving any notice. Furthermore there migh be some other “spy” asteroids, which according to NASA, prove to be the perfect targets for a visit from astronauts. Anyway that is very likely to happen in the coming 15 years.

    Usually most majority of the asteroids in our solar system are located in the rocky belt between Mars and Jupiter. So far about 4000 such rocks have been observed gravitating around Jupiter and a few other around Mars and Neptune. However,some other planets can attract asteroids into their orbit, too but none has been seen so far along Earth’s orbit or in its immediate vecinity.

    An outstanding result came up when the scientist thought about a different scenario. What if the Trojan rocky debris populate Earth’s orbit but they are just simply invisible to us? Thus another question was raised: Where should a same-orbit asteroid hover?
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    Well, an asteroid can stabilize on a planet’s orbit if the gravitational forces from the respective planet and that from the Sun cancel each other. Two positions fulfil such a requirement along the orbit and they are named Lagrangian points – one ahead the planet and another one behind it. Tracing straight lines between the Sun, the Earth and a Lagrangian spot results in a equilateral triangle. In consequence the asteroid should linger in the space at 60 degrees from the Sun. That position raised visibility issues because the rock would lie in the direction of the sun.

    Martin Connors, a space scientist at Alberta’s Athabasca University in Canada advised NASA to divert the lens of its Wide-Field Infrared Survey Explorer 90 degrees away from the sun; in this way there would be a chance to spot a Trojan with an eccentric orbit. And indeed, it worked. The scientific team detected a hidden rock that seems to match the elongated orbit of a Trojan. The newly-seen candidate was ranked as part of a new class of near Earth objects. The discovery revealed that the 2010TK7 Trojan asteroid lies in its orbit in front of the Earth.

    If there are other asteroids in the area, that would be a great for astronauts to pay them a visit. The recent discovered asteroid seems to be extremely tilted in relation to the solar system to become a possible target.

  • No more space fleet for the U.S.: Atlantis performed shuttle program last mission

    Atlantis performed final legendary flight of NASA's space shuttle program
    The U.S. Space Fleet just ended its operation after the iconic landing of the Space Shuttle Atlantis on Thursday July 21, 2011. Atlantis, carrying four astronauts aboard – three men and a woman – performed space program’s final trip with a successful touch down at Kennedy Space Center in Florida. The American astronauts upgraded the International Space Station by installing a new experimental system that allows automated fuel replenishment of the satellites in order to extend their life span.

    The last mission, STS-135, completed a 30-year space odyssey and the United States will have, for the first time since 1981, no spacecraft to carry astronauts into outer space.

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    The five operational space shuttles of the US fleet travelled almost 900 million kilometres in 30 years and completed more than 21,000 laps around the Earth during the 1300 days spent in the orbit. Two of them, – Challenger and Columbia – were destroyed in accidents (1986 and 2003) which killed 14 astronauts. The remaining shuttles (Discovery, Endeavour and Atlantis (and also test shuttle Enterprise)) will be displayed in several museums across the United States.
    Watch iconic final landing of Space Shuttle Atlantis: July 21, 2011

  • Video: Atlantis STS-135 landing: Final Mission of the Space Shuttle

    NASA: “Atlantis and the STS-135 crew touched down at NASA’s Kennedy Space Center in Florida just before dawn on July 21, 2011, wrapping up the final mission of the 30-year space shuttle program.”

    Video: Landing of Space Shuttle Atlandis STS-135: the final mission
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