Galaxies

Astrophysics
Astrophysics Division
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
Spiral Galaxies
The Universe
While it may appear as just another spiral galaxy among billions in the universe, this image from the NASA/ESA Hubble Space Telescope reveals a galaxy with plenty to study. The galaxy, NGC 7456, is located over 51 million light-years away in the constellation Grus (the Crane). This Hubble image reveals fine detail in the galaxy’s […]
Posted September 5, 2025
Astrophysics
Astrophysics Division
Galaxies
Galaxy clusters
Goddard Space Flight Center
Gravitational Lensing
Hubble Space Telescope
A massive, spacetime-warping cluster of galaxies is the setting of today’s NASA/ESA Hubble Space Telescope image. The galaxy cluster in question is Abell 209, located 2.8 billion light-years away in the constellation Cetus (the Whale). This Hubble image of Abell 209 shows more than a hundred galaxies, but there’s more to this cluster than even […]
Posted July 11, 2025
Astrophysics
Black Holes
Brown Dwarfs
Exoplanet Science
Exoplanets
Galaxies
Galaxies, Stars, & Black Holes
Goddard Space Flight Center
James Webb Space Telescope (JWST)
Nebulae
Science & Research
Star-forming Nebulae
Stars
Studying Exoplanets
The Universe
Since July 2022, NASA’s James Webb Space Telescope has been unwaveringly focused on our universe. With its unprecedented power to detect and analyze otherwise invisible infrared light, Webb is making observations that were once impossible, changing our view of the cosmos from the most distant galaxies to our own solar system.
Posted July 2, 2025
Astrophysics
Galaxies
Goddard Space Flight Center
James Webb Space Telescope (JWST)
Science & Research
Spiral Galaxies
The Universe
Present-day disk galaxies often contain a thick, star-filled outer disk and an embedded thin disk of stars. For instance, our own Milky Way galaxy’s thick disk is approximately 3,000 light-years in height, and its thin disk is roughly 1,000 light-years thick. How and why does this dual disk structure form? By analyzing archival data from […]
Posted June 26, 2025
Andromeda Galaxy
Chandra X-Ray Observatory
Galaxies
Marshall Astrophysics
Marshall Space Flight Center
The Universe
The Andromeda galaxy, also known as Messier 31 (M31), is the closest spiral galaxy to the Milky Way at a distance of about 2.5 million light-years. Astronomers use Andromeda to understand the structure and evolution of our own spiral, which is much harder to do since Earth is embedded inside the Milky Way. The galaxy […]
Posted June 26, 2025
International Space Station (ISS)
Active Galaxies
Astrophysics
Black Holes
Galaxies
Galaxies, Stars, & Black Holes Research
Goddard Space Flight Center
ISS Research
Neutron Stars
NICER (Neutron star Interior Composition Explorer)
Pulsars
Science & Research
Stars
The Universe
June 24, 2025 NASA’s NICER (Neutron star Interior Composition Explorer), an X-ray telescope on the International Space Station, has paused observations due to a problem with one of the motors that drives its ability to track cosmic objects.
Posted June 24, 2025
Astrophysics
Astrophysics Division
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
Irregular Galaxies
The Universe
This portrait from the NASA/ESA Hubble Space Telescope puts the nearby galaxy NGC 4449 in the spotlight. The galaxy is situated just 12.5 million light-years away in the constellation Canes Venatici (the Hunting Dogs). It is a member of the M94 galaxy group, which is near the Local Group of galaxies that the Milky Way […]
Posted June 20, 2025
Nancy Grace Roman Space Telescope
Astrophysics
Dark Matter
Galaxies
Galaxies, Stars, & Black Holes
Galaxies, Stars, & Black Holes Research
The Universe
A funky effect Einstein predicted, known as gravitational lensing — when a foreground galaxy magnifies more distant galaxies behind it — will soon become common when NASA’s Nancy Grace Roman Space Telescope begins science operations in 2027 and produces vast surveys of the cosmos.
Posted June 12, 2025
Astrophysics
Galaxies
Goddard Space Flight Center
James Webb Space Telescope (JWST)
Science & Research
The Universe
Astronomers using data from NASA’s James Webb Space Telescope have identified dozens of small galaxies that played a starring role in a cosmic makeover that transformed the early universe into the one we know today. “When it comes to producing ultraviolet light, these small galaxies punch well above their weight,” said Isak Wold, an assistant […]
Posted June 11, 2025
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