They are composed of mainly hydrogen and helium.
Stars are suns, We are in the Milkey Way Galaxy, We have only one Star. There are BILLIONS and BILLIONS of Stars in space.
Every galaxy interacts, via gravity, with every other galaxy.
They are each a source of light like the Sun.
They are each a source of light like the Sun.
They are all hot totally got this nailed it
It's a galaxy
you get every other star and get 100 purple coins on the new galaxy.
It is possible that every galaxy has some planets. We just are starting to detect some planets in other galaxies.
Every star we see in the sky is part of our own Milky Way galaxy. You cannot see any stars in other galaxies with the naked eye.
There are planets within every galaxy, so yes
Our galaxy moves away from every other galaxy, and that is a rule for most of known galaxies. This is a consequence of universe expansion. There are exceptions like Andromeda galaxy that is closing to Milky way. These anomalies are a result of gravitational dispersion. Other words, Andromeda was pulled buy some heavy object (other galaxy or a quasar) in the past and then ejected in opposite direction.
yes . It is complicated. Think of our galaxy as one dimple in the middle of a golf ball. It is surrounded by all the other dimples. Now, turn the ball over and select a new dimple. It WAS farthest away from us but now IT is in the middle and our galaxy is farthest away. Professional astronomers will tell you that each and every galaxy is in the middle of each and every other galaxy. I know this does not make much sense, but that is how it really is, to the best of our present knowledge...I told you it was complicated!