Galaxies

Astrophysics
Astrophysics Division
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
Missions
The Universe
Contrary to what you might think, galaxy collisions do not destroy stars. In fact, the rough-and-tumble dynamics trigger new generations of stars, and presumably accompanying planets. Now NASA’s Hubble Space Telescope has homed in on 12 interacting galaxies that have long, tadpole-like tidal tails of gas, dust, and a plethora of stars.
Posted February 8, 2024
Dark Energy
Dark Matter
Euclid
Galaxies
James Webb Space Telescope (JWST)
Nancy Grace Roman Space Telescope
SPHEREx (Spectro-Photometer for the History of the Universe and Ices Explorer)
Stellar Evolution
The Big Bang
The Universe
Some 13.8 billion years ago, the universe began with a rapid expansion we call the big bang. After this initial expansion, which lasted a fraction of a second, gravity started to slow the universe down. But the cosmos wouldn’t stay this way. Nine billion years after the universe began, its expansion started to speed up, […]
Posted February 5, 2024
Astrophysics
Astrophysics Division
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
Missions
Spiral Galaxies
The Universe
This image of the softly luminous spiral galaxy UGC 11105 is from the NASA/ESA Hubble Space Telescope. It lies about 110 million light-years from Earth in the constellation Hercules. Astronomers have different ways of quantifying how bright celestial objects are. Apparent magnitude is one of those methods.
Posted February 2, 2024
Astrophysics Division
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
Missions
Spiral Galaxies
The Universe
UGC 3912 is classified as a spiral galaxy … but you wouldn’t know it from this detailed NASA Hubble Space Telescope image. UGC 3912’s distorted shape is typically indicative of a gravitational encounter with another galaxy. When galaxies interact – either brush up against each other’s gravitational fields or even collide – their stars, dust, […]
Posted February 1, 2024
Astrophysics Division
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
Missions
The Universe
The galaxy NGC 5427 shines in this new NASA Hubble Space Telescope image. It’s part of the galaxy pair Arp 271, and its companion NGC 5426 is located below this galaxy and outside of this image’s frame. However, the effects of the pair’s gravitational attraction is visible in the galactic distortion and cosmic bridge of […]
Posted January 31, 2024
Astrophysics Division
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
Missions
Seyfert Galaxies
Spiral Galaxies
The Universe
Looking like a baseball lobbed into the depths of the universe, ESO 420-G013 is a face-on spiral galaxy and a Seyfert galaxy. Dark lanes of dust are visible against the background glow of the galaxy’s many stars.  About 10 percent of all the galaxies in the universe are thought to be Seyfert galaxies. They are […]
Posted January 30, 2024
Astrophysics
Galaxies
Galaxies, Stars, & Black Holes
Goddard Space Flight Center
Hubble Space Telescope
James Webb Space Telescope (JWST)
Missions
Science & Research
Spiral Galaxies
The Universe
It’s oh-so-easy to be absolutely mesmerized by these spiral galaxies. Follow their clearly defined arms, which are brimming with stars, to their centers, where there may be old star clusters and – sometimes – active supermassive black holes.
Posted January 29, 2024
Astrophysics Division
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
Missions
Spiral Galaxies
The Universe
A pair of small, interacting galaxies shine in this new NASA Hubble Space Telescope image. The larger of the two galaxies is named NGC 5410 and was discovered in 1787 by British astronomer William Herschel. It spans 80,000 light-years across and has a bright white bar of stars at its center. It is also a […]
Posted January 26, 2024
Astrophysics
Astrophysics Division
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
Missions
The Universe
One of the galaxies from a galactic group known as Arp 295 is visible in this new NASA Hubble Space Telescope image, along with part of the faint 250,000-light-year-long bridge of stars and gas that stretches between two of the galaxies. The galaxies have passed close enough together that their mutual gravity created this cosmic […]
Posted January 25, 2024
Galaxies
Goddard Space Flight Center
Hubble Space Telescope
Missions
The Universe
A barred spiral galaxy and a lenticular galaxy come together to create this interacting pair known as Arp 140. The lenticular galaxy, NGC 274, is visible on the right side of this new NASA Hubble Space Telescope image, and the barred spiral, NGC 275, is at left. The twosome is located in the constellation Cetus.  Lenticular […]
Posted January 24, 2024
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