"Where None Have Gone Before" --SpaceX's Elon Musk Ups the Suspense on Plans to Make Humans a Spacefaring Species (WATCH Video)

 

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“Once you have all of those four elements, you can actually go anywhere in the solar system by planet hopping or moon hopping,” Elon Musk said at t June’s ISS R&D conference in Washington, D.C. “So by establishing a propellant depot in the asteroid belt or on one of the moons of Jupiter you can make flights from Mars to Jupiter no problem.”

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Tiny Dwarf Galaxy Provides a Snapshot of the Early Universe --"Oxygen Came Later"

 

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"We found that a considerable fraction of the stellar mass of the galaxy was formed only a few million years ago, making this one of the best counterparts we've found of primordial galaxies," said University of Virginia astronomer Trinh Thuan. "Because of its extremely low oxygen level, this galaxy serves as an accessible proxy for star-forming galaxies that came together within one to two billion years after the Big Bang, the early period of our nearly 14 billion-year-old universe."

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"The Alien Channel" --METI: 'Earth Has Been Signaling Advanced Civilizations for the Past 2.5 Billion Years' (WATCH Today's 'Galaxy' Stream)

 
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"It’s the fact that every civilization that does have the ability to travel to Earth could already pick up I Love Lucy. So we have been sending our existence into space with radio signals for 78 years. Even before that, two and a half billion years, we have been telling the Universe that there is life on here because of the oxygen in our atmosphere.

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Betelgeuse 100,000 Years After It Morphed Into a Super Red Giant --"Not a Threat to Earth If It Goes Supernova"

 
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Were a supernova to go off within about 30 light-years of us, that would lead to major effects on the Earth, possibly mass extinctions. X-rays and more energetic gamma-rays from the supernova could destroy the ozone layer that protects us from solar ultraviolet rays. At 340 light years distant, the red giant star Betelgeuse is not a threat to Earth.

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The Alien Observatory --Odd White-Dwarf Star System Harbors a 13-Billion-Year-Old Planet (WATCH VIDEO)

 

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"In the quest for extraterrestrial biological signatures, the first stars we study should be white dwarfs," said Avi Loeb, theorist at the Harvard-Smithsonian Center for Astrophysics (CfA) and director of the Institute for Theory and Computation. Even dying stars could host planets with life - and if such life exists, we might be able to detect it within the next decade.

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"The X-Games of Astronomy" --Scientists Close to Actual Pictures of Milky Way's Supermassive Black Hole (WATCH Today's 'Galaxy' Stream)

 
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A super-powered radio telescopes has turned the Earth into one giant eye --the Event Horizon Telescope (EHT), a multinational effort involving more than 100 researchers--all pointing to Sagittarius A*—the supermassive black hole at the center of our galaxy first forecast by Albert Einstein and his theory of general relativity, and since then the subject of study by countless theoretical physicists, among them the famous cosmic detective Stephen Hawking.

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"Ultimate Source a Mystery" --Earth's Largest Cosmic Ray Observatory Provides Evidence of Extragalactic Origins

 

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Cosmic rays are atomic nuclei that travel through space at speeds close to that of light. Low-energy cosmic rays come from the Sun or from our own Galaxy, but the origin of the highest-energy particles has been the subject of debate ever since they were first discovered fifty years ago: do they come from our Galaxy or from distant extragalactic objects?

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Most Mysterious Phenomena in the Universe --"FRB Signals Occur Once Every Every Second from Unknown Sources" (WATCH Today's 'Galaxy' Stream)

 
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"In the time it takes you to drink a cup of coffee, hundreds of FRBs may have gone off somewhere in the Universe," said Avi Loeb, at the Harvard-Smithsonian Center for Astrophysics, who recently speculated that these signals may be signals from extraterrestrial civilizations. "If we can study even a fraction of those well enough, we should be able to unravel their origin."

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