Beyond Fermi's Paradox--Where Did All the Aliens Go?" --Today's "Galaxy" Stream (VIDEO)

 

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The Fermi paradox is the apparent contradiction between high estimates of the probability of the existence of extraterrestrial civilizations and the lack of evidence for, or contact with, such civilizations. As Enrico Fermi asked if the Universe is conducive to intelligent life, “Where is everybody?”

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14 Lightyears Away: Wolf Exoplanet System --"A Venus or an Earth?"

 

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Is there anybody out there? The question of whether Earthlings are alone in the universe has puzzled everyone from biologists and physicists to philosophers and filmmakers. It's also the driving force behind San Francisco State University astronomer Stephen Kane's research into exoplanets.

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EcoAlert --NASA Scientists Confirm 2016 "Earth's Hottest in Modern Record" (VIDEO)

 

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Earth's 2016 surface temperatures were the warmest since modern record keeping began in 1880, according to independent analyses by NASA and the National Oceanic and Atmospheric Administration (NOAA). NASA and NOAA released independent analyses of global temperatures that each came to the same conclusion: 2016 is very likely the hottest year on record, followed by 2015 and then 2014.

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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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