Let us start with an initial very large diffuse nebula.

A typical diffuse nebula is a few hundred light-years across.

The expanding shell of gas forms a supernova remnant, a special diffuse nebula.

Spock had chosen to conceal the powerful sensor relay next to a small diffuse nebula.

Binoculars are great for wide field, bright observations of the emission and diffuse nebula in our Milky Way Galaxy.

A lane of cooler dust connects NGC 1748 to a larger more diffuse nebula seen on the right.

This star is surrounded by a diffuse nebula called IC1318, or the Gamma Cygni region.

Because the device was triggered in a diffuse nebula of highly charged gas and radioactive debris, the result was a highly unstable planet.

Reflection nebulae and emission nebulae are usually seen together and sometimes are called 'diffuse nebulae'.

NGC 1579 (also known as the Northern Trifid) is a diffuse nebula located in the constellation of Perseus.

The Orion Nebula, also known as M42, is a diffuse nebula situated south of Orion's Belt in the constellation of Orion.

Slipher and Edwin Hubble continued to collect the spectra from many diffuse nebulae, finding 29 that showed emission spectra and 33 had the continuous spectra of star light.

August is also a great time to see the wonders of the central Milky Way directly overhead at Grove Creek Observatory with wonderful globular clusters and stunning diffuse nebula, so we will be showing other celestial wonders as well.

Here he wrote a famous paper, An Application of the Quantum Theory to the Luminosity of Diffuse Nebulae, which for the first time provided a quantitative method (the "Zanstra method") for understanding the luminosity of nebulas and comets.

Look in particular for the complicated Tarantula Nebula (30 Doradûs), which is the most brilliant part of the whole Cloud and can be identified even with the naked eye: it is the largest known diffuse nebula, and if it were as close to us as M42 in Orion it would cast strong shadows.