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  2. Hubble's law - Wikipedia

    en.wikipedia.org/wiki/Hubble's_law

    Hubble's law, also known as the HubbleLemaître law, [1] is the observation in physical cosmology that galaxies are moving away from Earth at speeds proportional to their distance. In other words, the farther they are, the faster they are moving away from Earth.

  3. Hubble Space Telescope - Wikipedia

    en.wikipedia.org/wiki/Hubble_Space_Telescope

    It was not the first space telescope, but it is one of the largest and most versatile, renowned as a vital research tool and as a public relations boon for astronomy. The Hubble telescope is named after astronomer Edwin Hubble and is one of NASA's Great Observatories.

  4. List of soft contact lens materials - Wikipedia

    en.wikipedia.org/wiki/List_of_soft_contact_lens...

    Soft contact lenses may be easier to adjust to and are more comfortable than rigid gas permeable lenses. Newer soft lens materials include silicone-hydrogels to provide more oxygen to your eye while you wear your lenses.

  5. Hubble sequence - Wikipedia

    en.wikipedia.org/wiki/Hubble_sequence

    The Hubble sequence is a morphological classification scheme for galaxies published by Edwin Hubble in 1926. [1] [2] [3] [4] It is often colloquially known as the Hubble tuning-fork diagram because the shape in which it is traditionally represented resembles a tuning fork .

  6. Corrective Optics Space Telescope Axial Replacement

    en.wikipedia.org/wiki/Corrective_Optics_Space...

    COSTAR on exhibit at the National Air and Space Museum. The Corrective Optics Space Telescope Axial Replacement ( COSTAR) is an optical correction instrument designed and built by NASA. It was created to correct the spherical aberration of the Hubble Space Telescope ' s primary mirror, which incorrectly focused light upon the Faint Object ...

  7. Edwin Hubble - Wikipedia

    en.wikipedia.org/wiki/Edwin_Hubble

    Edwin Hubble was born to Virginia Lee Hubble (née James) (1864–1934) [14] and John Powell Hubble, an insurance executive, in Marshfield, Missouri, and moved to Wheaton, Illinois, in 1900. [15] In his younger days, he was noted more for his athletic prowess than his intellectual abilities, although he did earn good grades in every subject ...

  8. Hubble volume - Wikipedia

    en.wikipedia.org/wiki/Hubble_volume

    The Hubble volume is approximately equal to 10 31 cubic light years (or about 10 79 cubic meters). The proper radius of a Hubble sphere (known as the Hubble radius or the Hubble length) is , where is the speed of light and is the Hubble constant.

  9. Cosmic distance ladder - Wikipedia

    en.wikipedia.org/wiki/Cosmic_distance_ladder

    The observational result of Hubble's Law, the proportional relationship between distance and the speed with which a galaxy is moving away from us, usually referred to as redshift, is a product of the cosmic distance ladder. Edwin Hubble observed that fainter galaxies are more redshifted.

  10. Wide Field Camera 3 - Wikipedia

    en.wikipedia.org/wiki/Wide_Field_Camera_3

    WFC3 infrared view of the Horsehead nebula. The instrument is designed to be a versatile camera capable of imaging astronomical targets over a very wide wavelength range and with a large field of view. It is a fourth-generation instrument for Hubble.

  11. Fine Guidance Sensor (HST) - Wikipedia

    en.wikipedia.org/wiki/Fine_Guidance_Sensor_(HST)

    A fine guidance sensors in space on STS Servicing Mission 2 in 1997. Fine Guidance Sensor ( FGS) for the Hubble Space Telescope is a system of three instruments used for pointing the telescope in space, and also for astrometry and its related sciences. [2] To enable aiming the telescope at a specific spot in the sky, each FGS combines optics ...

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