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  2. List of galaxies - Wikipedia

    en.wikipedia.org/wiki/List_of_galaxies

    Of several items, then called radio stars, Cygnus A was identified with a distant galaxy, being the first of many radio stars to become a radio galaxy. [24] [25] First quasar: 3C273: Virgo: 1962 3C273 was the first quasar with its redshift determined, and by some considered the first quasar. [citation needed] 3C48: Triangulum: 1960

  3. 2025 space launches: Uncrewed lunar missions and 1st private space station among 2025 space launches Gravitational lensing unveils historic number of distant stars. Most galaxies, including our ...

  4. Future of an expanding universe - Wikipedia

    en.wikipedia.org/wiki/Future_of_an_expanding...

    An image of many stars. LH 95 star forming region of the Large Magellanic Cloud. The image was taken using the Hubble Space Telescope. Source: European Space Agency (ESA/Hubble) The observable universe is currently 1.38 × 10 10 (13.8 billion) years old. [16] This time lies within the Stelliferous Era.

  5. List of star systems within 150–200 light-years - Wikipedia

    en.wikipedia.org/wiki/List_of_star_systems_within...

    This is a list of star systems within 150–200 light years of Earth. [1] [2] [3] This list is incomplete; you can help by adding missing items. (July 2024)

  6. Andromeda Galaxy - Wikipedia

    en.wikipedia.org/wiki/Andromeda_Galaxy

    Supernovae erupt in the Andromeda Galaxy's star-filled disk and eject these heavier elements into space. Over the Andromeda Galaxy's lifetime, nearly half of the heavy elements made by its stars have been ejected far beyond the galaxy's 200,000-light-year-diameter stellar disk.

  7. List of active Solar System probes - Wikipedia

    en.wikipedia.org/wiki/List_of_active_Solar...

    Solar System space probes operational as of November 2024. This is a list of active space probes which have escaped Earth orbit. It includes lunar space probes, but does not include space probes orbiting at the Sun–Earth Lagrangian points (for these, see List of objects at Lagrangian points). A craft is deemed "active" if it is still able to ...

  8. List of largest galaxies - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_galaxies

    Listed below are galaxies with diameters greater than 700,000 light-years. This list uses the mean cosmological parameters of the Lambda-CDM model based on results from the 2015 Planck collaboration, where H 0 = 67.74 km/s/Mpc, Ω Λ = 0.6911, and Ω m = 0.3089. [3]

  9. James Webb Space Telescope - Wikipedia

    en.wikipedia.org/wiki/James_Webb_Space_Telescope

    Webb is the formal successor to the Hubble Space Telescope (HST), and since its primary emphasis is on infrared astronomy, it is also a successor to the Spitzer Space Telescope. Webb will far surpass both those telescopes, being able to see many more and much older stars and galaxies. [169]