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Galaxy in sentence

301 examples of Galaxy in a sentence

Okay, what about that supermassive black hole in the middle of our galaxy?
So, since we know the physics of how x-ray, ultraviolet light, or microwaves work here, we can study the light of a distant star or galaxy and know what kinds of things are happening there too.
But then you recall learning that the Sun moves around the center of the Milky Way galaxy, and the Milky Way moves within the Local Group of galaxies, and the Local Group moves within the Virgo Cluster, and the Virgo Cluster moves within... "How fast are you moving?" is not an easy question.
The Enterprise's speed is warp 7 relative to the center of the Milky Way galaxy.
Quantum teleportation may even progress so far, that one day your cat will escape to a safer galaxy, where there are no physicists and no boxes.
We believe that life arose spontaneously on the Earth, so it must be possible for life to appear on other suitable planets, of which there seem to be a large number in the galaxy.
If we are the only intelligent beings in the galaxy, we should make sure we survive and continue.
1.3 billion years ago, in a distant, distant galaxy, two black holes locked into a spiral, falling inexorably towards each other and collided, converting three Suns' worth of stuff into pure energy in a tenth of a second.
Could human civilization eventually spread across the whole Milky Way galaxy?
There are around 300 billion stars in the galaxy, which is about 160,000 light-years across.
At that rate, it would take over 2.5 billion years just to get from one end of the galaxy to the other.
And yet, decades ago, scholars found that it's theoretically possible to not just spread human civilization across the galaxy, but to do so quite quickly, without breaking any known laws of physics.
Scholars crunched the numbers and found that a single von Neumann machine traveling at 5% of the speed of light should be able to replicate throughout our galaxy in 4 million years or less.
If we wanted to use them to spread actual humans throughout the galaxy, we would need yet another technological leap - the ability to artificially grow biological organisms and bodies using raw elements and genetic information.
Regardless, if in the last billion years an alien civilization created such a machine and set it multiplying its way toward us, our galaxy would be swarming with them by now.
But the next time you look at the night sky, consider that billions of self-replicating machines could be advancing between stars in our galaxy right now.
It involves data from a NASA mission, ordinary people and one of the most extraordinary stars in our galaxy.
And today, with the help of over 300,000 science enthusiasts, we have found dozens, and we've also found one of the most mysterious stars in our galaxy.
We are incredibly vulnerable to the whims of our own galaxy.
And by everything I mean, of course, me and you, the Earth, the Sun, the 100 billion suns in our galaxy and the 100 billion galaxies in the observable universe.
She transformed into a supernova, and in the process releasing a tremendous amount of energy, outshining the rest of the galaxy and emitting, in one second, the same amount of energy our sun will release in 10 days.
And she evolved into another role in our galaxy.
In that way, our star had extra energy to outshine the rest of the galaxy in brightness and gamma ray emission.
In fact, based on observations that Kepler's taken and other similar observations, we now believe that, of the 200 billion stars in the Milky Way galaxy alone, on average, every star has at least one planet.
In addition to that, estimates suggest there are somewhere between 40 billion and 100 billion of those planets that we would define as habitable in just our galaxy.
Last year, they released a film called "Guardians of the Galaxy."
And they made a killing off of "Guardians of the Galaxy."
He wanted to estimate N, the number of communicative civilizations out there in our galaxy, and he included in there the rate of star formation, the rate of planets, but crucially, intelligence.
N, the same thing, the number of communicative civilizations out there [that] we might expect in our galaxy.
Just start with the number of planets there are in our galaxy.
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