I Zwicky 18
Hi there! So, do you know what a galaxy is? It's a really big group of stars and planets that are all together in space. Well, there is one galaxy called "I Zwicky 18" that scientists are very interested in.
"I Zwicky 18" is special because it is very small and very young. It's actually one of the smallest galaxies that we know about! Because it's so young, scientists think that it hasn't had time to make a lot of stars yet.
Now, do you know what stars are made of? They're made of gas and dust, and often the gas is made up of something called hydrogen. Scientists believe that "I Zwicky 18" has a lot of hydrogen gas, which means it might be able to make a lot of stars in the future!
But there's something strange about "I Zwicky 18" too. Scientists have found that it doesn't have very much dark matter. Dark matter is a kind of matter that we can't see, but we think it's there because it affects the way that galaxies move. Most galaxies have a lot of dark matter, but "I Zwicky 18" doesn't seem to have much at all. This is really interesting for scientists because it might help them learn more about what dark matter is and how it works.
So, in summary, "I Zwicky 18" is a small, young galaxy that scientists are studying because it has a lot of hydrogen gas but not much dark matter. Isn't space amazing?
"I Zwicky 18" is special because it is very small and very young. It's actually one of the smallest galaxies that we know about! Because it's so young, scientists think that it hasn't had time to make a lot of stars yet.
Now, do you know what stars are made of? They're made of gas and dust, and often the gas is made up of something called hydrogen. Scientists believe that "I Zwicky 18" has a lot of hydrogen gas, which means it might be able to make a lot of stars in the future!
But there's something strange about "I Zwicky 18" too. Scientists have found that it doesn't have very much dark matter. Dark matter is a kind of matter that we can't see, but we think it's there because it affects the way that galaxies move. Most galaxies have a lot of dark matter, but "I Zwicky 18" doesn't seem to have much at all. This is really interesting for scientists because it might help them learn more about what dark matter is and how it works.
So, in summary, "I Zwicky 18" is a small, young galaxy that scientists are studying because it has a lot of hydrogen gas but not much dark matter. Isn't space amazing?