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Online Explorations
Fun, interactive ways to explore the universe
Galaxy Hunter
Pack your calculator! Statistically speaking, this cosmic photo shoot is out of this world!
Resource Overview
Hubble Deep Field Academy
Galactic census takers needed — no experience or door-knocking required. Easily use real astronomical data to uncover secrets of the universe, hidden in the HDF image.
Resource Overview
Graphic Organizers
T-charts and Venn diagrams for at-a-glance comparisons of celestial objects
Legacy
Comparison of spiral, elliptical, and irregular galaxies
Galactic similarities and differences at a glance.
Resource Overview
Legacy
Comparison of the Warped Galaxy and the Whirlpool Galaxy
Two cool galactic perspectives: On the edge and dead ahead.
Resource Overview
Lithographs
Downloadable, fact-filled portraits of celestial objects. Some include a classroom activity.
Colliding Galaxies
The act of galactic cannibalism frozen in time.
Resource Overview
Diverse Galaxies
Galaxies are everywhere in this striking image. Can you pick out the spiral, elliptical and irregular ones?
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eXtreme Deep Field
Hubble goes to the "eXtreme" with this farthest-ever view of the universe.
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Galaxy Centaurus A
A portrait of a hungry black hole with an appetite for galaxies.
Resource Overview
Galaxy Cluster Abell 2744
See one of nature's telescopes at work.
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Hubble's Galaxy Gallery (HDF)
A glimpse deep into our universe's past. (Also called the Hubble Deep Field.)
Resource Overview
Interacting Galaxies Arp 147
Hubble scored a perfect ten when it captured these interacting galaxies.
Resource Overview
Interacting Galaxies Arp 273
A rose is a rose is a rose, unless it's a pair of interacting galaxies.
Resource Overview
Interacting Galaxy NGC 7714
Get tangled up with this tangled spiral galaxy.
Resource Overview
M101: The Pinwheel Galaxy
Pin this galaxy to your wall.
Resource Overview
M82: A Starburst Galaxy
Astronomers collect clues to crack the case of an odd-looking galaxy.
Resource Overview
NGC 3314: A Tale of Two Galaxies
See through one galaxy to another in this chance, two-layer alignment.
Resource Overview
Sombrero Galaxy
A central bulge of brilliant stars burns from within the galaxy’s wide, flat, dusty disk.
Resource Overview
Spiral Galaxies NGC 4302 and NGC 4298
This spectacular view of two galaxies at different angles celebrates Hubble's 27th anniversary!
Spiral Galaxy NGC 3982
Consider this classic view of a spiral galaxy.
Resource Overview
The Hubble Ultra Deep Field
Hubble's deepest view of the universe boasts a zoo of galaxies. See galactic evolution in action over billions of years.
Resource Overview
The Whirlpool Galaxy and Companion Galaxy
A nearby galaxy may be stirring up star birth in the Whirlpool Galaxy.
Resource Overview
Warped Galaxy
It's wacky, it's warped!
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Whirlpool Galaxy
Give this galaxy a whirl.
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Zoomable Gallery
Highlights from Hubble's image collection
A Close Encounter
An encounter between these two spiral galaxies, called Arp 273, has created ...
Hubble eXtreme Deep Field
Like photographers assembling a portfolio of best shots, astronomers have assembled a new, improved portrait of mankind's deepest-ever view of ...
Hubble Ultra Deep Field 2004
The Hubble Ultra Deep Field (HUDF) is one of the deepest visible-light images ...
Stephan's Quintet
A clash among members of a famous galaxy quintet reveals an assortment of ...
Q&A
Commonly-asked questions about space and astronomy
Q&A: Galaxies
Satisfy your curiosity about the variety of galaxies that inhabit our universe.
Resource Overview
Fast Facts
Pictures and vital statistics for the planets and other celestial objects
Andromeda Galaxy
Check out the digs at our close galactic neighbor, the trillion-star Andromeda Galaxy.
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Antennae galaxies
The tails of these colliding galaxies are supposed to resemble an insect's antennae. What do you think?
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Cartwheel Galaxy
The colorful aftermath of a galactic collision.
Resource Overview
Centaurus A
What lurks at the heart of this giant elliptical galaxy? A supermassive black hole!
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Edge-on Spiral Galaxy
A spiral galaxy from a unique perspective.
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Galaxy Cluster Abell 2744
This cluster has enough gravitational 'pull' to reveal the ancient structures behind it.
Resource Overview
Hubble Ultra Deep Field
Peer through the universe at 10,000 galaxies stretching as far back in time as 13 billion years.
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Interacting galaxies Arp 147
A 'perfect 10' for beauty!
Resource Overview
Interacting galaxies Arp 273
Hubble caught a 'rose' tossed by two flamenco-dancing galaxies.
Resource Overview
Interacting galaxy NGC 7714
A galaxy pulled like taffy by the gravitational tug of a bypassing neighbor
Resource Overview
Large Magellanic Cloud
The Milky Way's gravity keeps this galactic neighbor — and its companion, the Small Magellanic Cloud — on a short leash.
Resource Overview
Messier 82 (M82)
Throughout the center of starburst galaxy M82, stars are forming 10 times faster than they do in the Milky Way.
Resource Overview
Milky Way Galaxy
Did you know our galaxy has a bar through its middle? Find out more about the starry home we call the Milky Way.
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Overlapping galaxies NGC 3314
Which galaxy upstages the other in this two-layer, chance alignment?
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Pinwheel Galaxy (M101)
This stunning face-on spiral has an impact that's in-your-face.
Resource Overview
Small Magellanic Cloud
The Milky Way's gravity keeps this galactic neighbor — and its companion, the Large Magellanic Cloud — on a short leash.
Resource Overview
Sombrero Galaxy
A radiant spiral galaxy drifts through distant space.
Resource Overview
Spiral Galaxy NGC 3982
Recent star-formation abounds in this glamour shot of a face-on spiral.
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Stephan's Quintet
Witness a clash among titans!
Resource Overview
Warped Galaxy
A remarkable view of a galaxy that's bent out of shape.
Resource Overview
Whirlpool Galaxy
A face-on view of a classic spiral galaxy.
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Whirlpool Galaxy and Companion
Is this majestic galaxy having a close encounter with a nearby neighbor galaxy?
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Myths vs realities
Common misconceptions about space. Each conceptual 'myth' is paired with the facts.
Galaxies
You need a telescope to see other galaxies — true or false?
Resource Overview
Videos
Engaging introductions to concepts in astronomy
Legacy
Colliding Galaxies
Graceful — or cataclysmic? Watch gravity play its part in bringing galaxies together.
Resource Overview
Legacy
Discovering Galaxies
Our galaxy is not the only one. Edwin Hubble was the first to prove it.
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Legacy
Oddball Galaxies
Galaxies often take familiar shapes but some are outright oddballs. Find out why.
Resource Overview
Star Witness news
Timely scoops from the Hubble Space Telescope's impressive array of discoveries
Legacy
Close Encounters of the Galactic Kind
Resource Overview
Legacy
Frontier Fields: Hubble Goes Deep
Resource Overview
Legacy
The Hubble Space Telescope: Time Machine to the Galaxies
Resource Overview
Tales of ...
In-depth background information on interesting space phenomena
A history of colliding galaxies: From oddballs to galaxy building blocks
The study of the enigmatic galaxies that collide with, merge with, and cannibalize other galaxies.
Resource Overview
Finding one of the brightest and youngest galaxies in the early universe
A massive galaxy cluster – a natural 'zoom lens' – helps astronomers uncover an infant galaxy.
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Finding the distance to a galaxy through a cosmic magnifying glass
How Hubble is using a giant galaxy cluster to find faint treasures behind it.
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Galactic wreckage in Stephan's Quintet
A tale of galaxies vying for a space to call their own.
Resource Overview
Key events in the history of Centaurus A
Follow the hunt for a once-elusive supermassive black hole.
Resource Overview
New life in an ancient galaxy
An ancient galaxy reveals its secret for staying young.
Resource Overview
The star that changed the universe
The universe became a much bigger place after Edwin Hubble discovered this star. Find out why.
Resource Overview
Bookmarks
A set of four eye-catching Hubble images. Download the PDFs, print, fold, and laminate.
Amazing Space Bookmark: Galaxies
Spiral Galaxy NGC 1300 is one of four bookmarks highlighting astronomical themes explored in Amazing Space's resources.
Trading Cards
Collectible card sets on galaxies and the solar system. Download, print, and fold.
Galaxy Trading Cards
Try your hand at this galactic card game.
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