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Chris Hadfield
Retired Canadian Astronaut & Author
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The biology of aliens: How much do we know?

Hollywood has created an idea of aliens that doesn't match the science.

  • Ask someone what they think aliens look like and you'll probably get a description heavily informed by films and pop culture. The existence of life beyond our planet has yet to be confirmed, but there are clues as to the biology of extraterrestrials in science.
  • "Don't give them claws," says biologist E.O. Wilson. "Claws are for carnivores and you've got to be an omnivore to be an E.T. There just isn't enough energy available in the next trophic level down to maintain big populations and stable populations that can evolve civilization."
  • In this compilation, Wilson, theoretical physicist Michio Kaku, Bill Nye, and evolutionary biologist Jonathan B. Losos explain why aliens don't look like us and why Hollywood depictions are mostly inaccurate.
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UFO sightings: Why Mount Shasta is the new Roswell

A volcano in California is a hot spot for conspiracy theorists.

Photo Credit: Shasta-Trinity National Forest.
  • Unusual UFO-shaped formations were observed in the skies over Mount Shasta.
  • These were actually lenticular clouds that often look like lenses or flying saucers.
  • This volcano peak in California has long been the subject of conspiracy theories.
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2 new ways to find aliens, according to a Nobel Prize winner

Physicist Frank Wilczek proposes new methods of searching for extraterrestrial life.

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  • Nobel Prize-winning physicist Frank Wilczek thinks we are not searching for aliens correctly.
  • Instead of sending out and listening for signals, he proposes two new methods of looking for extraterrestrials.
  • Spotting anomalies in planet temperature and atmosphere could yield clues of alien life, says the physicist.
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U.S. Air Force warns UFO enthusiasts against storming Area 51

Jokesters and serious Area 51 raiders would be met with military force.

  • Facebook joke event to "raid Area 51" has already gained 1,000,000 "going" attendees.
  • The U.S. Air Force has issued an official warning to potential "raiders."
  • If anyone actually tries to storm an American military base, the use of deadly force is authorized.
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A century of alien landings, in two maps

First contact movies had their Golden Age in 1980s America – now they're going global.

Credit: Dylan_Mq. Find his maps on Reddit, Twitter and Etsy.
  • The first extra-terrestrial to make contact (in a movie) appeared in 1920s Germany.
  • ET set off a wave of 'first contact' movies in the 1980s.
  • Many recent alien-landing movies are set in China and India – the future of the genre may well be Asian.
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