Ambassador 1: We’ve seen how a star dies, but what about how a star is born?
Alkina: Right. Epo, focus on Messier 42: The Orion Nebula. This is the closest area of massive new star formation to the Earth.
Ambassador 2: How many stars are being born in this nebula?
Epo: Over 700 stars.
Ambassador 1: Impressive, it must be a huge nebula!
Alkina: Yes, over 24 light years across.
Ambassador 2: And how does the Orion Nebula relate to the constellation Orion?
Epo: As you see, it’s part of the sword which hangs on his belt.
Ambassador 1: How does this nebula differ from the Crab Nebula you showed us earlier?
Alkina: That nebula was a cloud of hot gas left over from a supernova explosion. This is a cloud of cold gas that is collapsing under its own gravity to form new stars.
Alkina: And that concludes our tour! I hope you have all enjoyed it.
Is that all?
Tour Orion – Hubble Image Tour of Orion Nebula.