Skip to main content

Press Release Listing

Use the filter bar below to search by specific press release criteria including Mission, Year, and/or Keyword. Click the Apply button to generate the query. 

Filter Releases

(46 total)

Filter Results

  1. NASA's Roman to Peer Into Cosmic 'Lenses' to Better Define Dark Matter

    June 12, 2025Release ID: 2025-203 Missions: Roman

    The Nancy Grace Roman Space Telescope will identify over 160,000 gravitational lenses, which magnify background galaxies that existed earlier in the universe, in search of more information about dark matter.

    Graphic shows a simulated Roman Space Telescope image with four pullouts to show examples of gravitationally lensed galaxies.

  2. NASA's Hubble Traces Dark Matter in Dwarf Galaxy Using Stellar Motions

    July 11, 2024Release ID: 2024-017 Missions: Hubble

    The telescope's longevity is an asset in gaining clarity about the universe's invisible glue.

    At left is the Digitized Sky Survey view of the Draco dwarf galaxy. Many yellow, blue-white, and white stars are dispersed across the black background of space. They vary in shape and size, though most resemble small, circular points of light. Larger stars, some with four diffraction spikes, are scattered infrequently across the field of view. A thin, light brown oval highlights the area of interest, which contains two small white squares in its center. The area of each square is magnified at right, showing views captured by the Hubble Space Telescope. The top right square reveals a black patch of space with many small points of light and a large, four-point diffraction spike toward the left. The bottom right square shows a black patch of space filled with small points of light, some with diffraction spikes.

  3. NASA's Roman to Search for Signs of Dark Matter Clumps

    January 17, 2024Release ID: 2024-201 Missions: STScI, Roman

    The Roman Space Telescope’s fine resolution and panoramic views will allow researchers to examine streams of stars pulled from globular star clusters.

    An illustration of the Andromeda galaxy takes up about one third of the view. A few irregularly shaped lines representing globular cluster streams are present. Some globular cluster streams are shown with gaps.

  4. Mapping the Universe's Earliest Structures with COSMOS-Webb

    August 18, 2021Release ID: 2021-042 Missions: Webb

    This ambitious program will study half a million galaxies in a field the size of three full Moons

    A white square with irregular, jagged edges falls just within the dimensions of the image. Within it is a grayscale field that shows hundreds of bright white points in a range of sizes.

  5. Mystery of Galaxy's Missing Dark Matter Deepens

    June 17, 2021Release ID: 2021-025 Missions: Hubble

    Precise Distance to Galaxy Bolsters Missing Dark Matter Claim

    Diffuse galaxy with red giant stars and background galaxies

  6. Hubble Observations Suggest a Missing Ingredient in Dark Matter Theories

    September 10, 2020Release ID: 2020-29 Missions: Hubble

    Researchers Find a Surprising Gap Between Dark Matter Observations and Theories

    Galaxy Cluster MACS J1206 with call-outs

  7. 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

  8. Hubble Detects Smallest Known Dark Matter Clumps

    January 08, 2020Release ID: 2020-05 Missions: Hubble

    Ghostly Dark Matter Uncovered in Small Concentrations by Cosmic Magnifying Glasses

    Hubble Detects Smallest Known Dark Matter Clumps

  9. What Does the Milky Way Weigh? Hubble and Gaia Investigate

    March 07, 2019Release ID: 2019-16 Missions: Hubble

    Wayward star clusters are used to weigh our home galaxy.

    Illustration of a blue and pink spiral galaxy in the center, surrounded by white dots of different sizes.

  10. Hubble Uncovers the Farthest Star Ever Seen

    April 02, 2018Release ID: 2018-13 Missions: Hubble

    Cosmic quirk boosts far-off star’s faint glow

    Hubble Uncovers the Farthest Star Ever Seen

  11. Dark Matter Goes Missing in Oddball Galaxy

    March 28, 2018Release ID: 2018-16 Missions: Hubble

    Galaxy was expected to contain 400 times more dark matter than observations show

    Dark Matter Goes Missing in Oddball Galaxy

  12. Hubble and Chandra Discover Dark Matter Is Not as Sticky as Once Thought

    March 26, 2015Release ID: 2015-10 Missions: Hubble

    In particle physics labs, like the Large Hadron Collider in Geneva, Switzerland, scientists smash atoms together to study the underpinnings of matter and energy. On the scale of the macrocosm, nature provides a similar...

    Hubble and Chandra Discover Dark Matter Is Not as Sticky as Once Thought

  13. Hubble Finds That Monster 'El Gordo' Galaxy Cluster Is Bigger Than Thought

    April 03, 2014Release ID: 2014-22 Missions: Hubble

    If someone told you there was an object in space called "El Gordo" (Spanish for "the fat one") you might imagine some kind of planet-eating monster straight out of a science fiction movie. The nickname refers to a monstr...

    Hubble Finds That Monster 'El Gordo' Galaxy Cluster Is Bigger Than Thought

  14. Hubble Uncovers Largest Known Population of Star Clusters

    September 12, 2013Release ID: 2013-36 Missions: Hubble

    Ten years ago, astronomer John Blakeslee spotted dots of light peppered throughout images of a giant cluster of galaxies, called Abell 1689. Each dot was not one star, but hundreds of thousands of stars crowded togeth...

    Two side-by-side images. On the left is a cluster of golden galaxies on the black background of space. A white rectangle highlights the area of the image on the right. The right image has light orange dots of different sizes. Larger orbs appear at the top left and right of the image. A larger golden-orange circle lights up the bottom left. Above the image is the object name, "Globular Clusters in Galaxy Cluster Abell 1689" and the instrument, "Hubble Space Telescope, ACS/WFC".

  15. 'Dark Core' May Not Be So Dark After All

    November 30, 2012Release ID: 2012-42 Missions: Hubble

    Now you see it, now you don't. Douglas Clowe of Ohio University in Athens, Ohio, is reporting on new Hubble observations that do not find an unusually dense clump of dark matter in the universe that a different Hubble...

    'Dark Core' May Not Be So Dark After All

Share This Page

This site is protected by reCAPTCHA and the Google

Contact our News Team 

Contact our Outreach Office