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  2. List of gravitationally rounded objects of the Solar System

    en.wikipedia.org/wiki/List_of_gravitationally...

    Equatorial gravity: m/s 2 g: 274.0 27.94 Escape velocity: km/s: 617.7 Rotation period days: 25.38 Orbital period about Galactic Center [4] million years 225–250 Mean orbital speed [4] km/s: ≈ 220 Axial tilt to the ecliptic: deg. 7.25 Axial tilt to the galactic plane: deg. 67.23 Mean surface temperature: K: 5,778 Mean coronal temperature [5 ...

  3. Timeline of gravitational physics and relativity - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_gravitational...

    [249] [250] LIGO-VIRGO and Fermi constrain the difference between the speed of gravity and the speed of light in vacuum to 10 −15. [251] This marks the first time electromagnetic and gravitational waves are detected from a single source, [252] [253] and give direct evidence that some (short) gamma-ray bursts are due to colliding neutron stars ...

  4. The Universe (TV series) - Wikipedia

    en.wikipedia.org/wiki/The_Universe_(TV_series)

    The Universe is an American documentary television series that features computer-generated imagery and computer graphics of astronomical objects in the universe plus interviews with experts who study in the fields of cosmology, astronomy, and astrophysics. The program was produced by Flight 33 Productions and Workaholic Productions.

  5. Introduction to general relativity - Wikipedia

    en.wikipedia.org/wiki/Introduction_to_general...

    The Einstein Cross: four images of the same distant quasar, produced by a gravitational lens (the much closer foreground galaxy Huchra's lens) Since light is deflected in a gravitational field, it is possible for the light of a distant object to reach an observer along two or more paths.

  6. Timeline of cosmological theories - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_cosmological...

    The images can be interpreted to indicate that the universe is 13.7 billion years old (within one percent error), and are very consistent with the Lambda-CDM model and the density fluctuations predicted by inflation. Cosmic microwave background as measured by the Cosmic Background Imager experiment. 2003 – The Sloan Great Wall is discovered.

  7. How the Universe Works - Wikipedia

    en.wikipedia.org/wiki/How_the_Universe_Works

    The fourth season premiered on July 14, 2015, as part of the Science Channel's "Space Week," in honor of New Horizons' flyby of Pluto that day; the season ran through September 1, 2015. The show's fifth season aired from November 22, 2016, through February 7, 2017. The sixth season premiered on January 9, 2018, and ran through March 13, 2018.

  8. Into the Universe with Stephen Hawking - Wikipedia

    en.wikipedia.org/wiki/Into_the_Universe_with...

    The series was created for Discovery Channel by Darlow Smithson Productions and features computer generated imagery of the universe created by Red Vision. The series premiered on 25 April 2010 in the United States and started on 9 May 2010 in the United Kingdom with a modified title, Stephen Hawking's Universe (not to be confused with the 1997 ...

  9. Big Bang - Wikipedia

    en.wikipedia.org/wiki/Big_Bang

    The Big Bang is a physical theory that describes how the universe expanded from an initial state of high density and temperature. [1] The notion of an expanding universe was first scientifically originated by physicist Alexander Friedmann in 1922 with the mathematical derivation of the Friedmann equations.

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