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  2. Windows 10 - Wikipedia

    en.wikipedia.org/wiki/Windows_10

    In conclusion, contrasting Windows 8 as being a "reliable" platform albeit consisting of unfinished concepts, Windows 10 was considered "the best Windows yet", and was praised for having a better overall concept in its ability to be "comfortable and effective" across a wide array of form factors, but that it was buggier than previous versions ...

  3. Universe - Wikipedia

    en.wikipedia.org/wiki/Universe

    The observable universe contains as many as an estimated 2 trillion galaxies [95] [96] [97] and, overall, as many as an estimated 10 24 stars [98] [99] – more stars (and earth-like planets) than all the grains of beach sand on planet Earth; [100] [101] [102] but less than the total number of atoms estimated in the universe as 10 82; [103] and ...

  4. List of largest cosmic structures - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_cosmic...

    Discovered through gamma-ray burst mapping. Largest-known regular formation in the observable universe. [8] Huge-LQG (2012–2013) 4,000,000,000 [9] [10] [11] Decoupling of 73 quasars. Largest-known large quasar group and the first structure found to exceed 3 billion light-years. "Giant Arc" (2021) 3,300,000,000 [12] Located 9.2 billion light ...

  5. Dark energy - Wikipedia

    en.wikipedia.org/wiki/Dark_energy

    The density of dark matter in an expanding universe decreases more quickly than dark energy, and eventually the dark energy dominates. Specifically, when the volume of the universe doubles, the density of dark matter is halved, but the density of dark energy is nearly unchanged (it is exactly constant in the case of a cosmological constant).

  6. Phrases from The Hitchhiker's Guide to the Galaxy - Wikipedia

    en.wikipedia.org/wiki/Phrases_from_The_Hitchhiker...

    The Answer to the Ultimate Question of Life, The Universe, and Everything. In the radio series and the first novel, a group of hyper-intelligent pan-dimensional beings demand to learn the Answer to the Ultimate Question of Life, The Universe, and Everything from the supercomputer Deep Thought, specially built for this purpose.

  7. Galaxy morphological classification - Wikipedia

    en.wikipedia.org/wiki/Galaxy_morphological...

    Spiral galaxy UGC 12591 is classified as an S0/Sa galaxy. [1]The Hubble sequence is a morphological classification scheme for galaxies invented by Edwin Hubble in 1926. [2] [3] It is often known colloquially as the “Hubble tuning-fork” because of the shape in which it is traditionally represented.

  8. Celestia - Wikipedia

    en.wikipedia.org/wiki/Celestia

    Typical DSO survey in Celestia. Celestia versions 1.6.4 and under display the Hipparcos Catalogue (HIP) of 118,322 stars and a compiled catalogue of galaxies, while version 1.7.0 includes stars from the Tycho-2 Catalogue alongside the Hipparcos stars, with some data from Gaia, increasing the star count to over 2 million. [22]

  9. SpaceEngine - Wikipedia

    en.wikipedia.org/wiki/SpaceEngine

    SpaceEngine is an interactive 3D planetarium and astronomy software [2] initially developed by Russian astronomer and programmer Vladimir Romanyuk. [3] Development is now continued by Cosmographic Software, an American company founded by Romanyuk and the SpaceEngine Team in February 2022, based in Connecticut.