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  2. Astronomy - Wikipedia

    en.wikipedia.org/wiki/Astronomy

    Observations of the large-scale structure of the Universe, a branch known as physical cosmology, have provided a deep understanding of the formation and evolution of the cosmos. Fundamental to modern cosmology is the well-accepted theory of the Big Bang , wherein our Universe began at a single point in time , and thereafter expanded over the ...

  3. Cosmology - Wikipedia

    en.wikipedia.org/wiki/Cosmology

    The Hubble eXtreme Deep Field (XDF) was completed in September 2012 and shows the farthest galaxies ever photographed at that time. Except for the few stars in the foreground (which are bright and easily recognizable because only they have diffraction spikes), every speck of light in the photo is an individual galaxy, some of them as old as 13.2 billion years; the observable universe is ...

  4. Alex Filippenko - Wikipedia

    en.wikipedia.org/wiki/Alex_Filippenko

    Filippenko is frequently featured in the History Channel series The Universe, as well as in the series How the Universe Works. Overall, he has participated in more than 120 science documentaries. Filippenko is the author of and teacher in an eight-volume teaching series on DVD called Understanding the Universe. [7]

  5. How the Universe Works - Wikipedia

    en.wikipedia.org/wiki/How_the_Universe_Works

    How The Universe Works is a science documentary television series that provides ... This episode follows scientists trying to understand how magnetism works. Season 5 ...

  6. Curious Kids: if the universe is like a giant brain, then ...

    www.aol.com/news/curious-kids-universe-giant...

    Our brain cells do look a lot like a map of the universe – but that doesn't mean they're the same thing. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 ...

  7. Universe - Wikipedia

    en.wikipedia.org/wiki/Universe

    Hence, according to Einstein's field equations, R grew rapidly from an unimaginably hot, dense state that existed immediately following this singularity (when R had a small, finite value); this is the essence of the Big Bang model of the universe. Understanding the singularity of the Big Bang likely requires a quantum theory of gravity, which ...