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  1. NASA Celebrates Edwin Hubble's Discovery of a New Universe

    January 15, 2025Release ID: 2025-001 Missions: Hubble

    Pinpointing a Milepost Marker Star that Opened the Realm of Galaxies

    A Hubble image of the Andromeda galaxy, tilted from the bottom left to top right. The outer edges of the galaxy are blue, while the inner two-thirds is yellowish with a bright, central core. Four inset boxes form an arc along the top portion of the galaxy, each showing a bright white star in the center surrounded by other stars. Each box has a correlating date at the bottom: Dec. 17, 2020, Dec. 21, 2010, Dec. 30, 2019, and Jan. 26, 2011. The center star in the boxes appears brighter with each passing date. An arrow from galaxy’s right center spiral arm points to the boxes, indicating where the star originates in the galaxy.

  2. New Horizons Measurements Shed New Light on the Darkness of the Universe

    August 28, 2024Release ID: 2024-029 Missions: STScI

    Deep space probe measures all the background light in the universe.

    An artist’s impression of NASA’s New Horizons spacecraft against the backdrop of deep space. The spacecraft has a triangular shape with a dish-shaped antenna connected to it. The bright lane of our Milky Way galaxy is in the background. Seen edge-on, it is filled with countless stars, nebulae, and dust lanes.

  3. Hubble Reaches New Milestone in Mystery of Universe's Expansion Rate

    May 19, 2022Release ID: 2022-005 Missions: Hubble

    Three Decades of Space Telescope Observations Converge on a Precise Value for the Hubble Constant

    Collage of 36 colorful spiral and interacting galaxies

  4. New Horizons Spacecraft Answers Question: How Dark Is Space?

    January 12, 2021Release ID: 2021-001 Missions: STScI

    New measurements of the sky’s blackness show more light than can be accounted for by known galaxies.

    Artist’s illustration of NASA’s New Horizons spacecraft

  5. Hubble Makes Surprising Find in the Early Universe

    June 03, 2020Release ID: 2020-34 Missions: Hubble

    Deep Space Quest Doesn't Find the First Stars, Pushing Back the Timeline of the Universe's Evolution.

    Hubble Makes Surprising Find in the Early Universe

  6. Slime Mold Simulations Used to Map the Dark Matter Holding the Universe Together

    March 10, 2020Release ID: 2020-11 Missions: Hubble

    Feasting Behavior of Brainless Organisms Shows Astronomers Where to Point the Hubble Telescope

    Slime Mold Simulations Used to Map the Dark Matter Holding the Universe Together

  7. NASA’s Webb to Explore Galaxies from Cosmic Dawn to Present Day

    March 21, 2019Release ID: 2019-20 Missions: Webb

    Astronomers to peer deep into the early universe to uncover its origins and evolution

    Galaxy cluster Abell 2744

  8. Hubble Unveils a Deep Sea of Small and Faint Early Galaxies

    January 07, 2014Release ID: 2014-07 Missions: Hubble

    Scientists have long suspected there must be a hidden population of small, faint galaxies that were responsible during the universe's early years for producing a majority of stars now present in the cosmos. At last Hubbl...

    Hubble Unveils a Deep Sea of Small and Faint Early Galaxies

  9. HST's Greatest Hits 1990-1995

    November 29, 1995Release ID: 1995-49 Missions: Hubble

    Hubble Space Telescope evokes a new sense of awe and wonder about the infinite richness of our universe in dramatic, unprecedented pictures of celestial objects. Like a traveler sharing their best snapshots, we present...

    HST's Greatest Hits 1990-1995

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