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Topic: NASA’s Solar Dynamics ObservatoryWritten by Mara Johnson-Groh
Amir Caspi of the Southwest Research Institute in Boulder, Colorado, and his team will use two of NASA’s WB-57F research jets to chase the darkness across America on August 21st. Taking observations from twin telescopes mounted on the noses of the planes, Caspi will capture the clearest images of the Sun’s outer atmosphere — the corona — to date and the first-ever thermal images of Mercury, revealing how temperature varies across the planet’s surface. ![]() (Photo illustration) During the upcoming total solar eclipse, a team of NASA-funded scientists will observe the solar corona using stabilized telescopes aboard two of NASA’s WB-57F research aircraft. This vantage point provides distinct advantages over ground-based observations, as illustrated by this composite photo of the aircraft and the 2015 total solar eclipse at the Faroe Islands. (NASA/Faroe Islands/SwRI) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Solar Dynamics Observatory to move Master Clock up One SecondWritten by Karen C. Fox
Clocks do this to keep in sync with Earth’s rotation, which gradually slows down over time. When the dinosaurs roamed Earth, for example, our globe took only 23 hours to make a complete rotation. In space, millisecond accuracy is crucial to understanding how satellites orbit. ![]() Images from NASA’s Solar Dynamics Observatory — such as this one showing the sun as it appears in wavelengths of extreme ultraviolet light — have a time stamp showing Universal Time on it. To maintain accuracy, SDO will join official clocks around the world in adding a leap second on Dec. 31, 2016. (NASA/SDO) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Solar Dynamics Observatory sees Earth and Moon in Double EclipseWritten by Lina Tran
On September 1st, Earth completely eclipsed the sun from SDO’s perspective just as the moon began its journey across the face of the sun. The end of the Earth eclipse happened just in time for SDO to catch the final stages of the lunar transit. ![]() You can tell Earth and the moon’s shadows apart by their edges: Earth’s is fuzzy, while the moon’s is sharp and distinct. This is because Earth’s atmosphere absorbs some of the sun’s light, creating an ill-defined edge. On the other hand, the moon has no atmosphere, producing a crisp horizon. «Read the rest of this article» Sections: Technology | No Comments
NASA’s Solar Dynamics Observatory takes dazzling images of the Sun during 360 rotationWritten by Lina Tran
For this period of time, SDO images – taken every 12 seconds – appeared to show the sun spinning, as if stuck on a pinwheel. The images below were taken by SDO’s Atmospheric Imaging Assembly instrument in extreme ultraviolet wavelengths that are typically invisible to our eyes, but was colorized here in gold for easy viewing. «Read the rest of this article» Sections: Technology | No Comments
NASA’s Mars Curiosity rover observes Sunspots on the face of the SunWritten by Guy Webster
Large sunspots are evident in views from Curiosity’s Mast Camera (Mastcam). Scientists temporarily have no other resource providing views of the sun from the opposite side of the solar system from Earth. The sun completes a rotation about once a month — faster near its equator than near its poles. ![]() An eruption from the surface of the sun is conspicuous in the lower left portion of this July 6, 2015, image from NASA’s Earth-orbiting Solar Dynamics Observatory. (Image credit: NASA) «Read the rest of this article» Sections: Technology | No Comments
NASA missions have discovered an abundance of Water in our Solar SystemWritten by Preston Dyches
“NASA science activities have provided a wave of amazing findings related to water in recent years that inspire us to continue investigating our origins and the fascinating possibilities for other worlds, and life, in the universe,” said Ellen Stofan, chief scientist for the agency. “In our lifetime, we may very well finally answer whether we are alone in the solar system and beyond.” ![]() NASA is exploring our solar system and beyond to understand the workings of the universe, searching for water and life among the stars. (NASA) «Read the rest of this article» Sections: Technology | No Comments
NASA looks into the mystery of the Sun’s NanoflaresWritten by Dr. Tony Phillips
Researchers are studying a type of explosion on the sun called a ‘nanoflare.’ A billion times less energetic than ordinary flares, nanoflares have a power that belies their name. “A typical ‘nanoflare’ has the same energy as 240 megatons of TNT,” says physicist David Smith of UC Santa Cruz. “That would be something like 10,000 atomic fission bombs.” «Read the rest of this article» Sections: Technology | No Comments
NASA’s Solar Dynamics Observatory sees Giant Sunspot erupting more Solar Flares from the SunWritten by Karen C. Fox
NASA’s Solar Dynamics Observatory, which constantly observes the sun, captured images of the event. To see how this event may affect Earth, please visit NOAA’s Space Weather Prediction Center at http://spaceweather.gov , the U.S. government’s official source for space weather forecasts, alerts, watches and warnings. ![]() A large active region erupts with a mid-level flare, an M6.6-class, in this image from NASA’s SDO on the night of Oct. 27, 2014. The region will soon rotate over the right horizon of the sun and will no longer be facing Earth. (NASA/SDO) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Solar Dynamics Observatory captures images of Mid-level Solar Flare from the SunWritten by Karen C. Fox
Harmful radiation from a flare cannot pass through Earth’s atmosphere to physically affect humans on the ground, however — when intense enough — they can disturb the atmosphere in the layer where GPS and communications signals travel. ![]() NASA’s Solar Dynamics Observatory captured this image of a solar flare on Oct. 2nd, 2014. The solar flare is the bright flash of light on the right limb of the sun. A burst of solar material erupting out into space can be seen just below it. (NASA/SDO) «Read the rest of this article» Sections: Technology | No Comments
NASA takes a look at the passing of Comet ISONWritten by Dr. Tony Phillips
Some comets like it hot, but Comet ISON was not one of them. The much-anticipated flyby of the sun by Comet ISON on Thanksgiving Day 2013 is over, and instead of becoming a Great Comet…. «Read the rest of this article» Sections: Technology | No Comments
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