you wouldn’t see anything by the time you got there (to the nebula), it’s only visible from a distance when all the light it produces is concentrated into a tiny patch of sky. Get up close and it’s the same amount of light, spread out over light years.

Plural nebulae (nĕb′yə-lē′) nebulas.

Nebulae are pretty only when they are hundreds of light-years away. You could fly your spaceship right into the nebula and never even know it. If the Earth were inside a nebula, the only effect you’d see would be brighter Auroras, unless the solar wind blew all the nebular particles far away from the planet.

Possibly, but probably not. It is not known when life formed on Earth, but Earth was once part of a nebula, and it now has life. Solar nebulae like the one that formed our solar system are essentially cleared by the gravity of the sun and planets within 10–100 million years.

The closest nebula to us is the Helix Nebula (NGC 7293), pictured above. It is 650 light years away and about 6 light years across. If you’re wondering, a light year is the distance that light travels in a vacuum over the course of one year, which is 5.88 trillion miles (9.46 trillion km).

Nebula. Diffuse nebula are the clouds of material formed from the explosions of population three, population two stars, and the left over hydrogen and helium from the Big Bang. As a galaxy rotates like the Milky way, large densities of gas and dust build up in the spiral arms.

Some great examples of planetary nebulae in the night sky include the Ring Nebula, the Dumbbell Nebula, and the Helix Nebula. Planetary Nebulae involves a low-mass star entering the final stage of its life.

Users can sign up for a free seven-day trial, but thereafter are charged a $5/month subscription fee.

Planetary nebulae are important objects in astronomy because they play a crucial role in the chemical evolution of the galaxy, returning material to the interstellar medium which has been enriched in heavy elements and other products of nucleosynthesis (such as carbon, nitrogen, oxygen and calcium). …

Explanation: The closest nebula is the Orion Nebula at more than 1300 light years from Earth. It is so remote that nothing that happens there can influence the Earth. The only influence is to have beautiful colors and shapes and to let us dream one day to go there and explore them.

The Milky Way