it means the world has been around for 100 billion years
A nebula is a large, indistinctly defined body in space, like a gas cloud or cloud of small particles.
nebula
Nebula means cloud in latin. If you want a full answer, google it. Then you can get the origins and stuff.
Well, darling, a nebula is a big ol' cloud of dust and gas in space, while the Crab Nebula is a specific nebula located in the constellation Taurus. So basically, it's like saying a nebula is a generic term for a cloud in space, while the Crab Nebula is a specific cloud that got its own fancy name. Hope that clears things up for ya, sugar!
A cloud in outer space consisting of gas or dust and planetry nebula is one of the types also called ring nebula or A planetary nebula is an emission nebula consisting of a glowing shell of gas
nebula
A Nebula.
A nebula.
All bodies that have mass, have gravity. The Helix Nebula is a large planetary nebula and will have "loads" of gravity.
You can find a Nebula just about anywhere in space. They are big floating masses of dust and gas that form stars.
The constellation Taurus
The Ring Nebula is classified as a planetary nebula which is a shell of gas and plasma, formed when certain stars die.So, in a way they are clouds of matter in space.