Yes they are. They're huge!!
Yes. The constellations we see, in fact all star visible from earth make up just a small part of one galaxy. A constellation may have a handful of stars while a Galaxy has billions if not hundreds of billions.
Nebulas are interstellar clouds consisting of dust, hydrogen, helium and other ionized gases. Nebulas vary in size, so some are bigger than Earth, and others are not.
Stars do not create supernovas. Supernovas happen to stars. A supernova is when a star, bigger than our own sun, explodes due to the lack of gas they need.
No, they are much smaller.
Nebulas Ray happened in 1994.
Nebulas Ray was created in 1994.
Stars form in nebulas. They're like star nurseries. The gas and dust in nebulas helps to form stars in their early stages.
Supernovas are the explosions of large stars in space.
I can't say yes, and I can't say no. The reason is because Nebulas can beenormous, it'sridiculous! But clusters are normally bigger than nebulas so on my opinion I'd say no. But if you are on a test or homework and nebula is bigger, then just go with that.
no
Supernova are responsible for every element in the Universe heavier than iron.