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  2. Webb telescope confirms the universe is expanding at an ...

    www.aol.com/news/webb-telescope-confirms...

    The universe's expansion rate, a figure called the Hubble constant, is measured in kilometers per second per megaparsec, a distance equal to 3.26 million light-years.

  3. Hubble Space Telescope - Wikipedia

    en.wikipedia.org/wiki/Hubble_Space_Telescope

    The Hubble Space Telescope (HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. 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.

  4. James Webb telescope data suggests undiscovered cosmic force ...

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    James Webb telescope data suggests undiscovered cosmic force could be behind Universe’s expansion. ... Tension," which refers to Hubble Space Telescope observations over 30 years that show the ...

  5. Observational cosmology - Wikipedia

    en.wikipedia.org/wiki/Observational_cosmology

    Two years later, Hubble showed that the relation between the distances and velocities was a positive correlation and had a slope of about 500 km/s/Mpc. [10] This correlation would come to be known as Hubble's law and would serve as the observational foundation for the expanding universe theories on which cosmology is

  6. Hubble's law - Wikipedia

    en.wikipedia.org/wiki/Hubble's_law

    Hubble's law, also known as the Hubble–Lemaître 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 a galaxy is from the Earth, the faster it moves away.

  7. Hubble telescope reveals huge star's explosion in blow-by ...

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    The images were discovered in a review of Hubble observation archival data from 2010, according to astronomer Wenlei Chen, a University of Minnesota postdoctoral researcher and lead author of the ...

  8. Airborne observatory - Wikipedia

    en.wikipedia.org/wiki/Airborne_observatory

    Two United States Air Force colonels inspecting the path of the eclipse of February 25, 1952 in preparation for an expedition to Africa. For the solar eclipse of June 30, 1954, observations were made "from the open door of a special Lincoln aircraft". Photographs helped "to derive coronal brightness and polarization, along with sky brightness ...

  9. Cosmic Background Explorer - Wikipedia

    en.wikipedia.org/wiki/Cosmic_Background_Explorer

    The Cosmic Background Explorer (COBE / ˈ k oʊ b i / KOH-bee), also referred to as Explorer 66, was a NASA satellite dedicated to cosmology, which operated from 1989 to 1993.Its goals were to investigate the cosmic microwave background radiation (CMB or CMBR) of the universe and provide measurements that would help shape the understanding of the cosmos.