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James Cameron's Story of Science Fiction --ALIENS --Season 1, Episode 1 PREMIERES TONIGHT 10/9C (WATCH Video)

 
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From its earliest days, science fiction has asked whether or not we're alone in the universe. Steven Spielberg, Ridley Scott, Sigourney Weaver and others ponder the question: What can aliens teach us about ourselves?

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Gaia Mission --"Something Sent Powerful Ripples Through Our Galaxy 300-900 Million Years Ago"

 

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Since the Gaia Spacecraft's second massive data drop last week, scientists have released over 30 new research papers in just two days following the announcement. One especially intriguing paper describes the possibility that a powerful gravitational force sent ripples through our galaxy, like a stone into a pond, between 300 million and 900 million years ago that might have been due to a close approach from the Sagittarius Dwarf Galaxy orbiting the Milky Way around 70,000 light years away.

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Star Creation --"May Not Be the Same Everywhere in the Milky Way"

 

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The mass distribution of young stars may not be the same everywhere in our Galaxy, contrary to what is currently assumed. If this turns out to be the case, the scientific community will be forced to re-examine its calculations about star formation and, eventually, any estimates that depend on the number of massive stars, such as the chemical enrichment of the interstellar medium, and the numbers of black holes and supernovas.

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Today's "Planet Earth Report" --Technology's 'Golden Future' --Superhuman Intelligence or Immense Human Suffering?


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Technology evangelists dream about a future where we’re all liberated from the more mundane aspects of our jobs by artificial intelligence. Other futurists go further, imagining AI will enable us to become superhuman, enhancing our intelligence, abandoning our mortal bodies, and uploading ourselves to the cloud.

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Today's Top Space Headline: Beyond Our Universe --"There are Regions of the Cosmos That Differ From What We See Locally"

 

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For me, at least, says John Donoghue, theoretical physicist at the University of Massachusetts at Amherst, the multiverse is the idea that physically out there, beyond where we can see, there are portions of the universe that have different properties than we see locally. We know the universe is bigger than we can see. We don’t know how much bigger. So the question is, is it the same everywhere as you go out or is it different?

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China's New FAST Radio Telescope -World's Largest- Makes Breakthrough Discovery

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“This discovery demonstrated the great potential of FAST in pulsar searching, highlighting the vitality of the large aperture radio telescope in the new era,” said Kejia Lee, scientist at the Kavli Institute of Astronomy and Astrophysics, Peking University.

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Today's Top Science Headline --"Some 4 Billion Years Ago Earth was Infected By Life"

 

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Because life happened to Earth, its atmosphere, surface, and planetary crust have been profoundly altered again and again for some 4 billion years. Billions of years ago microbial life built an oxygen-rich atmosphere. There are signs that part of that process may have helped plunge Earth into a ‘snowball’ state – a period of profoundly cooler global climate for hundreds of millions of years. Ocean chemistry has been reworked by life. Cloud formation is influenced by biologically produced particles. Some scientists have even posited that microbe produced material could influence plate tectonics; the slip and slide of planetary crust.

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NASA Scientists Seek Fossils of Ancient Mars' Life --"Was There a Common Ancestor? Maybe We're All Martians"

 

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NASA scientists must be prepared to look for fossil evidence of bacterial life on Mars dating back three billion years when most of its atmosphere and possibly existing life vanished in the solar wind. Fossils of early bacterial life more than 3.5 billion years ago have been found on Earth. If similar life ever existed on Mars, NASA has a chance of finding a fossil record of it.

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"Unlike Anything We Expected" --Scientists Detect Enigmatic Radio Signal from Cosmic Dawn (Today's Top Space Headline)

 

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As teams of observers try to replicate those findings in the few places on Earth that are relatively undisturbed by radio interference, theorists are struggling to make sense of the signal. “The signal does not look like anything we expected”, says Abraham Loeb, an astrophysicist at Harvard University in Cambridge, Massachusetts.

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