Galaxies

Astrophysics
Black Holes
Galaxies
Gamma Rays
Gamma-Ray Bursts
Goddard Space Flight Center
Neil Gehrels Swift Observatory
Swift Boost Mission
The Universe
Wallops Flight Facility
A commercial mission to boost NASA’s Swift observatory concluded without raising the spacecraft’s orbit, but the agency and industry vendor gained valuable experience that will benefit future in-space servicing programs.
Posted September 28, 2026
Astrophysics
Astrophysics Division
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
The Universe
NASA’s Hubble Space Telescope completed its 200,000th orbit around Earth on Sept. 19, marking another new milestone for an observatory that continues to transform our understanding of the universe. Hubble has traveled more than 5 billion miles around Earth over its 36-year lifetime, exceeding 1.7 million total observations.
Posted September 23, 2026
Galaxies
Using NASA’s Chandra X-ray Observatory, researchers found mysterious objects that give off unusually low-energy X-rays but intense levels of ultraviolet radiation. One of the galaxies they studied, M101, is pictured here in this image released on Sept. 9, 2026.
Posted September 22, 2026
Astrophysics
Astrophysics Division
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
Spiral Galaxies
The Universe
Uncategorized
Though the spiral galaxy in this new image from the NASA/ESA Hubble Space Telescope seems serene, it hides a chaotic secret. This galaxy is NGC 4698, and it lies about 55 million light-years away in the constellation Virgo. It’s one of over a thousand galaxies in the Virgo Cluster, the nearest large cluster of galaxies bound together by […]
Posted September 18, 2026
Astrophysics
Chandra X-Ray Observatory
Galaxies
Marshall Astrophysics
Marshall Space Flight Center
Using NASA’s Chandra X-ray Observatory, scientists have discovered a new class of objects behaving unlike any they have seen before. Astronomers suggest these newly spotted objects in other galaxies may help solve not one, but two long-standing questions in astrophysics.
Posted September 9, 2026
Black Holes
Dark Energy
Dark Matter
Exoplanets
Galaxies
Nancy Grace Roman Space Telescope
Stars
The Universe
NASA’s Nancy Grace Roman Space Telescope is set to launch at 7:26 a.m. EDT on Sunday, Aug. 30. While you wait to watch the launch, brush up on some key facts about this wide-view mission.
Posted August 27, 2026
Active Galaxies
Astrophysics
Chandra X-Ray Observatory
Elliptical Galaxies
Galaxies
Galaxies, Stars, & Black Holes Research
Galaxy Mergers
Interacting Galaxies
Irregular Galaxies
Marshall Astrophysics
Marshall Space Flight Center
Spiral Galaxies
The Universe
Galaxies are like cosmic gems, each with characteristics including size and shape that make them distinct. A new gallery released today from NASA’s Chandra X-ray Observatory and other telescopes displays a collection of galactic images that showcase this variety.
Posted August 25, 2026
Astrophysics
Astrophysics Division
Galaxies
Globular Clusters
Goddard Space Flight Center
Hubble Space Telescope
Star Clusters
The Milky Way
New Hubble data shows definitive evidence of a dwarf galaxy merging with the young Milky Way in the earliest phases of its evolution.
Posted August 17, 2026
Galaxies
In this July 6, 2026, image, NASA’s James Webb Space Telescope’s Mid-Infrared Instrument (MIRI) reveals the nearby galaxy Centaurus A, exposing the dusty structures and hidden activity that shape this unusual system. Centaurus A is 11 million light-years away from Earth, relatively close in cosmic terms.
Posted July 30, 2026
Astrophysics
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
James Webb Space Telescope (JWST)
Science & Research
The Universe
Since their discovery by NASA’s James Webb Space Telescope in 2022, little red dots (LRDs) have been the subject of great interest to astronomers. Understanding the nature of these extremely distant, compact red sources has been a puzzling scientific endeavor.
Posted July 29, 2026
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