Juno Mission Explores Jupiter's Awesome Mysteries (Today's "Galaxy" Stream)

 

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On July 4th, NASA Television aired live coverage of the solar-powered Juno spacecraft’s arrival at Jupiter after an almost five-year journey. Juno is the first spacecraft to orbit the poles of our solar system’s most massive planet. It will circle the Jovian world 37 times during 20 months, skimming to within 3,100 miles (5,000 kilometers) above the cloud tops, providing new answers to ongoing mysteries about the planet’s core, composition and magnetic fields.

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NASA: Cosmic Particle Accelerator Discovered --"Largest and Most Powerful in the Universe"

 

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Astronomers have discovered a cosmic one-two punch unlike any ever seen before. Two of the most powerful phenomena in the Universe, a supermassive black hole, and the collision of giant galaxy clusters, have combined to create a stupendous cosmic particle accelerator.

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"Hacking the Cosmos" --China Completing World's First ExaScale Supercomputer



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China is moving quickly to solidify its lead in the world's digital arms race. Last year, the country unveiled the world’s fastest supercomputer, the Sunway TaihuLight (above). This year, according to state news agency Xinhua, the government has set its sights on completing the world’s first prototype exascale computer; a machine capable of making a billion, billion calculations per second.

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"Ten Times More Powerful than Hubble!" --Chile's Giant Magellan Telescope Will Search for Earth 2.0 (Today's "Galaxy" Stream)

 

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“We’re seeking to make the most sensitive instrument in the history of mankind,” said Andrew Szentgyorgyi, associate director of the solar, stellar, and planetary sciences division at the Harvard-Smithsonian Center for Astrophysics. “We’re looking to find Earth 2.0.”

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Recycling the Planet --"Heat from Earth's Core Drives Plate Dynamics"

 

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For decades, scientists have theorized that the movement of Earth's tectonic plates is driven largely by negative buoyancy created as they cool. New research, however, shows plate dynamics are driven significantly by the additional force of heat drawn from the Earth's core.

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"With Alien Eyes" --ALMA Observatory Can Now Study Our Sun Across the Entire Electromagentic Spectrum (VIDEO)

 

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"We’re accustomed to seeing how our Sun appears in visible light, but that can only tell us so much about the dynamic surface and energetic atmosphere of our nearest star,” said Tim Bastian, an astronomer with the National Radio Astronomy Observatory in Charlottesville, Virginia in the USA. “To fully understand the Sun, we need to study it across the entire electromagnetic spectrum, including the millimeter and submillimeter portion that ALMA can observe.

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Window On Our Climate Future: Ice Sheet 22,000 Years Ago Three Times Greater Than Greenland's --"Lowered Global Sea Level 120 Meters" (VIDEO)

 

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One of the major questions facing us today is how the present ice sheets in Greenland and Antarctica will react to climate change. Simply put, the more we understand of the mechanisms that drove ice sheets to collapse in the past, the better we will be able to predict what will happen in the future.

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The Milky Way's Destiny? --"Dark Matter Clouds are Killing Galaxies Throughout the Cosmos" (VIDEO)

 

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Through the cosmos, galaxies are dying off, and the question astronomers want answered is, "what's killing them?" New research by a global team of researchers, based at the International Centre for Radio Astronomy Research (ICRAR), has revealed that a study of 11,000 galaxies shows their gas —the lifeblood for star formation— is being violently stripped away on a widespread scale throughout the local Universe.

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NASA's 2020 Mars Mission 'Fossil Finder' --"Doubles Down on Search for Life With Alien Biochemistry" (Today's "Galaxy" Stream)

 

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“On Earth, our ancient rock record has been through the washing machine and the ringer so many times that the fact that anything still retains any signature of its age is a miracle,” says Brown University’s Jack Mustard, one of the experts consulting with NASA on its fossil-finding mission. “The rocks on Mars would not have been processed to the same extent, would not have been beat up as much, would not have been stretched and squished and heated and buried and exhumed,” he says.

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"The Asteroid Winter" --Chicxulub Impact Blocked Sunlight, Led to Extinction of Dinosaurs

 

 

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Is Earth's ancient past our human prologue? "The big chill following the impact of the asteroid that formed the Chicxulub crater in Mexico is a turning point in Earth history," says Julia Brugger from the Potsdam Institute for Climate Impact Research (PIK). "We can now contribute new insights for understanding the much-debated ultimate cause for the demise of the dinosaurs at the end of the Cretaceous era."

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