Galaxy
noun
A large group of stars, gas, and dust in space that's bounded together by gravity.
The Milky Way is a galaxy that contains our solar system.
Often appears as...
- spiral galaxy
- galaxy cluster
Usage tips
Technical
noun
A very large or impressive group or collection of something.
She has a whole galaxy of fans following her on social media.
Often appears as...
- galaxy of stars
- galaxy of talents
noun
A type of candy bar made from milk chocolate.
She bought a Galaxy bar from the store for her dessert.
Often appears as...
- galaxy chocolate bar
- galaxy ripple
noun
A large group of stars, gas, and dust in space that's bounded together by gravity.
The Milky Way is a galaxy that contains our solar system.
Often appears as...
- spiral galaxy
- galaxy cluster
Usage tips
Technical
noun
A very large or impressive group or collection of something.
She has a whole galaxy of fans following her on social media.
Often appears as...
- galaxy of stars
- galaxy of talents
noun
A type of candy bar made from milk chocolate.
She bought a Galaxy bar from the store for her dessert.
Often appears as...
- galaxy chocolate bar
- galaxy ripple
Definition 1 of 3
Pro Tip 1/3Astronomy Term
Used in scientific contexts to describe vast systems of stars and celestial bodies.
Astronomers discovered a new galaxy that's billions of light-years away.
Pro Tip 2/3Not a Constellation
A galaxy is much larger than a constellation; it contains many constellations within it.
Unlike Orion, a constellation, our galaxy includes numerous star systems.
Pro Tip 3/3Gravity's Role
Gravity holds a galaxy together, making it a united system, not a random cluster.
Our galaxy's gravity pulls in nearby cosmic dust and gas, helping it grow.
Pro Tip 1/3Astronomy Term
Used in scientific contexts to describe vast systems of stars and celestial bodies.
Astronomers discovered a new galaxy that's billions of light-years away.
Pro Tip 2/3Not a Constellation
A galaxy is much larger than a constellation; it contains many constellations within it.
Unlike Orion, a constellation, our galaxy includes numerous star systems.
Pro Tip 3/3Gravity's Role
Gravity holds a galaxy together, making it a united system, not a random cluster.
Our galaxy's gravity pulls in nearby cosmic dust and gas, helping it grow.
Pro Tip 1/3Astronomy Term
Used in scientific contexts to describe vast systems of stars and celestial bodies.
Astronomers discovered a new galaxy that's billions of light-years away.
Pro Tip 2/3Not a Constellation
A galaxy is much larger than a constellation; it contains many constellations within it.
Unlike Orion, a constellation, our galaxy includes numerous star systems.
Pro Tip 3/3Gravity's Role
Gravity holds a galaxy together, making it a united system, not a random cluster.
Our galaxy's gravity pulls in nearby cosmic dust and gas, helping it grow.
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Video examples
How small are we in the...
That's incredible when we think about how vast the universe is. Why would we expect it to be the same across such huge distances? On the scale of a galaxy, let alone the universe, we're smaller than we can readily comprehend, but we do have the capacity to wonder, to question, to explore,
Video examples
How many universes are...
is intimately connected to those distant, invisible galaxies. We can think of them as part of our universe. They make up a single, giant edifice, obeying the same physical laws and all made from the same types of atoms, electrons, protons, quarks, neutrinos that make up you and me.
Video examples
Questions No One Knows...
is intimately connected to those distant, invisible galaxies. We can think of them as part of our universe. They make up a single, giant edifice obeying the same physical laws and all made from the same types of atoms, electrons, protons, quarks, neutrinos, that make up you and me.
Video examples
How do we study the...
Astrophysicists don't just see the billions of stars among the billions of galaxies in the universe. They hear, feel and sense them through many channels, each revealing a different story. But it all begins with light, the kind we can see and the kind we can't.
Video examples
Light seconds, light...
And those smudgy galaxies? They're millions of light years away. It has taken millions of years for that light to reach us. So the universe itself is in some sense an inbuilt time machine. The further we can look back, the younger the universe we are probing.
Video examples
What we can learn from...
Useful as the universe's most massive laboratories. And as laboratories, to describe galaxy clusters is to describe the experiments that you can do with them. And I think there are four major types, and the first type that I want to describe
Video examples
Black Holes 101 PIPE...
discovered the first black hole. An untold number of black holes are scattered throughout the universe, constantly warping space and time, altering entire galaxies, and endlessly inspiring both scientists and our collective imagination.
Video examples
Jedidah Isler: How I...
one of the most distant images of our universe ever observed. Everything you see here is a galaxy, comprised of billions of stars each. And the farthest galaxy is a trillion, trillion kilometers away.
Video examples
What does an alien look...
our galaxy is just one of hundreds of billions of galaxies in the universe that is a lot of opportunities to find life Mars it's simply the first step thank you
Video examples
This Spacecraft Maps 1.5...
one mission more than any other has deepened our understanding of the galaxy a spacecraft bearing the name of an
Video examples
How small are we in the...
That's incredible when we think about how vast the universe is. Why would we expect it to be the same across such huge distances? On the scale of a galaxy, let alone the universe, we're smaller than we can readily comprehend, but we do have the capacity to wonder, to question, to explore,
Video examples
How many universes are...
is intimately connected to those distant, invisible galaxies. We can think of them as part of our universe. They make up a single, giant edifice, obeying the same physical laws and all made from the same types of atoms, electrons, protons, quarks, neutrinos that make up you and me.
Video examples
Questions No One Knows...
is intimately connected to those distant, invisible galaxies. We can think of them as part of our universe. They make up a single, giant edifice obeying the same physical laws and all made from the same types of atoms, electrons, protons, quarks, neutrinos, that make up you and me.
Video examples
How do we study the...
Astrophysicists don't just see the billions of stars among the billions of galaxies in the universe. They hear, feel and sense them through many channels, each revealing a different story. But it all begins with light, the kind we can see and the kind we can't.
Video examples
Light seconds, light...
And those smudgy galaxies? They're millions of light years away. It has taken millions of years for that light to reach us. So the universe itself is in some sense an inbuilt time machine. The further we can look back, the younger the universe we are probing.
Video examples
What we can learn from...
Useful as the universe's most massive laboratories. And as laboratories, to describe galaxy clusters is to describe the experiments that you can do with them. And I think there are four major types, and the first type that I want to describe
Video examples
Black Holes 101 PIPE...
discovered the first black hole. An untold number of black holes are scattered throughout the universe, constantly warping space and time, altering entire galaxies, and endlessly inspiring both scientists and our collective imagination.
Video examples
Jedidah Isler: How I...
one of the most distant images of our universe ever observed. Everything you see here is a galaxy, comprised of billions of stars each. And the farthest galaxy is a trillion, trillion kilometers away.
Video examples
What does an alien look...
our galaxy is just one of hundreds of billions of galaxies in the universe that is a lot of opportunities to find life Mars it's simply the first step thank you
Video examples
This Spacecraft Maps 1.5...
one mission more than any other has deepened our understanding of the galaxy a spacecraft bearing the name of an
Example 1 of 10
Quote examples
Stephen Hawking
English Physicist
In less than a hundred years, we have found a new way to think of ourselves. From sitting at the center of the universe, we now find ourselves orbiting an average-sized sun, which is just one of millions of stars in our own Milky Way galaxy.
Quote examples
Shannon Walker
We have stars, planets and galaxies in space. There's lots of nothingness out there, but it's really not. There's gas, dust and other bits of matter floating around emptier' areas of the universe, but you can't see it very easily.
Quote examples
Jim Peebles
Canadian Scientist
There must be enormous numbers of planets around the stars in the many galaxies in our observable universe. We may be sure that wonderful things are happening on these planets that the human race never will observe.
Quote examples
Kelly Marie Tran
American Actress
Even though 'Star Wars' takes place in another galaxy, a lot of the themes and things that characters deal with in terms of lessons that they're learning are things that are completely relatable to real life.
Quote examples
Leonardo DiCaprio
American Actor
I love science fiction, but I have a hard time feeling for characters in a galaxy far away. Choosing movies is the one thing in my life where there's no compromising.
Quote examples
John Travolta
American Actor
I have to believe there's some other life force out there. I don't know in what form. But we can't have all these galaxies and universes without something going on.
Quote examples
Robert Lanza
American Scientist
For example, if the big bang had been one-part-in-a billion more powerful, it would have rushed out too fast for the galaxies to form and for life to begin.
Quote examples
Priyamvada Natarajan
Indian Scientist
Finding the first seed black holes could help reveal how the relation between black holes and their host galaxies evolved over time.
Quote examples
Jonathan Frakes
American Actor
I've always thought that we, as human beings, would be naive and arrogant to pretend that we're the only life form in the galaxy.
Quote examples
Martin Rees
British Scientist
There are at least as many galaxies in our observable universe as there are stars in our galaxy.
Quote examples
Stephen Hawking
English Physicist
In less than a hundred years, we have found a new way to think of ourselves. From sitting at the center of the universe, we now find ourselves orbiting an average-sized sun, which is just one of millions of stars in our own Milky Way galaxy.
Quote examples
Shannon Walker
We have stars, planets and galaxies in space. There's lots of nothingness out there, but it's really not. There's gas, dust and other bits of matter floating around emptier' areas of the universe, but you can't see it very easily.
Quote examples
Jim Peebles
Canadian Scientist
There must be enormous numbers of planets around the stars in the many galaxies in our observable universe. We may be sure that wonderful things are happening on these planets that the human race never will observe.
Quote examples
Kelly Marie Tran
American Actress
Even though 'Star Wars' takes place in another galaxy, a lot of the themes and things that characters deal with in terms of lessons that they're learning are things that are completely relatable to real life.
Quote examples
Leonardo DiCaprio
American Actor
I love science fiction, but I have a hard time feeling for characters in a galaxy far away. Choosing movies is the one thing in my life where there's no compromising.
Quote examples
John Travolta
American Actor
I have to believe there's some other life force out there. I don't know in what form. But we can't have all these galaxies and universes without something going on.
Quote examples
Robert Lanza
American Scientist
For example, if the big bang had been one-part-in-a billion more powerful, it would have rushed out too fast for the galaxies to form and for life to begin.
Quote examples
Priyamvada Natarajan
Indian Scientist
Finding the first seed black holes could help reveal how the relation between black holes and their host galaxies evolved over time.
Quote examples
Jonathan Frakes
American Actor
I've always thought that we, as human beings, would be naive and arrogant to pretend that we're the only life form in the galaxy.
Quote examples
Martin Rees
British Scientist
There are at least as many galaxies in our observable universe as there are stars in our galaxy.
Example 1 of 10
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