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  2. Extraterrestrial life - Wikipedia

    en.wikipedia.org/wiki/Extraterrestrial_life

    About 1 in 5 Sun-like stars [a] have an "Earth-sized" [b] planet in the habitable zone, [c] with the nearest expected to be within 12 light-years distance from Earth. [ 111 ] [ 112 ] Assuming 200 billion stars in the Milky Way, [ d ] that would be 11 billion potentially habitable Earth-sized planets in the Milky Way, rising to 40 billion if red ...

  3. Pop Quiz: Why Do We Think Aliens Look Like That? - AOL

    www.aol.com/news/pop-quiz-why-think-aliens...

    A pretty standard image comes to mind when thinking of aliens: a little green or gray being with a big head and black bug eyes. In the early 20th century, aliens tended to look pretty different ...

  4. History of the extraterrestrial life debate - Wikipedia

    en.wikipedia.org/wiki/History_of_the...

    Thomas Aquinas discussed it in his Summa Theologica: according to John 1:10 "the world was made by Him", with "world" in singular, which would mean only one. A single world would also mean order, in contrast with the plurality of words held by atomists, who would believe in chance rather than in an "ordaining wisdom" creating it all.

  5. Zoo hypothesis - Wikipedia

    en.wikipedia.org/wiki/Zoo_hypothesis

    In essence, the aliens treat all of Earth like the titular character in The Truman Show in order to maintain the show's integrity. 2008: In the video game Spore , which simulates the evolution and life of species on a fictional galaxy, intelligent species in the "Space Stage" cannot contact those in previous stages, which did not unify their ...

  6. Scientists find Earth-like planet that could be home to alien ...

    www.aol.com/news/scientists-earth-planet-could...

    Scientists have found a new Earth-like planet that could support alien life – just 40 light-years away.. The planet is a remarkable discovery in the search for habitable worlds: it is slightly ...

  7. Firstborn hypothesis - Wikipedia

    en.wikipedia.org/wiki/Firstborn_hypothesis

    There is no reliable or reproducible evidence that aliens have visited Earth. [3] [4] No transmissions or evidence of intelligent extraterrestrial life have been observed anywhere other than Earth in the universe. This runs counter to the knowledge that the universe is filled with a very large number of planets, some of which likely hold the ...

  8. Aliens May Well Exist in a Parallel Universe, New Studies Find

    www.aol.com/news/aliens-may-well-exist-parallel...

    Should the search for alien life in our universe come up empty-handed, it might be worth checking in on a neighboring universe instead. According to a new pair of studies in the journal Monthly ...

  9. List of potentially habitable exoplanets - Wikipedia

    en.wikipedia.org/wiki/List_of_potentially...

    The following list includes some of the potentially habitable exoplanets discovered so far. It is mostly based on estimates of habitability by the Habitable Worlds Catalog (HWC), and data from the NASA Exoplanet Archive.