Galaxy in sentence

301 examples of Galaxy in a sentence

This one happens to be a particularly important galaxy, because you are here.

And as you take a close-up of this galaxy, you find a relatively normal, not particularly interesting star.

But there was something else that I've noticed as those changes were taking place, as people were starting to find out that hmm ... yeah, there really is a black hole at the center of every galaxy.

You know, 10 years ago, or 15 years ago, really, you walk into an astronomy convention, and you say, "You know, there's probably a black hole at the center of every galaxy," and they're going to hoot you off the stage.

We think that there are about 10 million dead stars in the Milky Way alone, our galaxy.

Maybe 400 billion stars in our galaxy?

As I stand under them, I see not just a cloud, but understand that what I have the privilege to witness is the same forces, the same process in a small-scale version that helped to create our galaxy, our solar system, our sun and even this very planet.

And here's a beautiful picture of the Andromeda Nebula, which is our closest, largest spiral galaxy to the Milky Way.

A long time ago in a galaxy — oops, wrong script.

Now, by showing you some of these images, I hope that you will quickly see that galaxy clusters are these beautiful objects, but more than that, I think galaxy clusters are mysterious, they are surprising, and they're useful.

And as laboratories, to describe galaxy clusters is to describe the experiments that you can do with them.

Well, here is an image of a particular galaxy cluster.

Now, to give you a number, this particular galaxy cluster has a mass of over one million billion suns.

Okay, if I take an image of a galaxy cluster, and I subtract away all of the starlight, what I'm left with is this big, blue blob.

Since galaxy clusters are representative slices of the universe, scaled-down versions.

The reason why galaxy clusters can teach us about dark matter, the reason why galaxy clusters can teach us about the physics of the very small, is precisely because they are so very big.

Somewhere in some other planet, orbiting some very distant star, maybe in a another galaxy, there could well be entities that are at least as intelligent as we are, and are interested in science.

Astronomers now believe that every star in the galaxy has a planet, and they speculate that up to one fifth of them have an Earth-like planet that might be able to harbor life, but we haven't seen any of them.

That civilization could program self-replicating probes to visit every planetary system in the galaxy.

If they launched the first probes just after midnight one August day, then before breakfast same day, they could have colonized the galaxy.

A civilization from any one of millions of galaxies could have colonized our galaxy.

In my experience, when people sit down and do the math, they typically conclude there are thousands of civilizations in the galaxy.

There could be a trillion planets in the galaxy.

If the galaxy contains a trillion planets, how many will host a civilization capable of contemplating like us projects such as Breakthrough Starshot?

I soared through the galaxy driving a huge starship with a crew made up of people from all over this world, many different races, many different cultures, many different heritages, all working together, and our mission was to explore strange new worlds, to seek out new life and new civilizations, to boldly go where no one has gone before.

Just last month, NASA announced the discovery of 517 new planets in orbit around nearby stars, almost doubling overnight the number of planets we know about within our galaxy.

But just the idea that the more distant a galaxy, the faster it was receding, was enough to give rise to modern cosmology.

And it took three years to find just 42 supernovae, because a supernova only explodes once every hundred years within a galaxy.

And my team discovered an extremely rare one, a galaxy that doesn't look quite like anything observed before.

This galaxy is so peculiar, that it challenges our theories and our assumptions about how the universe works.

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