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Nebula
A nebula is a giant cloud of gas (mostly hydrogen and helium) and cosmic dust situated between stars in the interstellar medium. Nebulae serve as sites of stellar birth and death—including emission nebulae that glow from ionized gas, reflection nebulae that scatter starlight, and dark nebulae that obscure background stars.
Source: science.nasa.gov
APODs including "Nebula"
The Horsehead Nebula
20/11/2023
M1: The Incredible Expanding Crab
15/11/2023
M1: The Crab Nebula
09/11/2023
Halloween and the Wizard Nebula
31/10/2023
Reflections of the Ghost Nebula
30/10/2023
The Ghosts of Gamma Cas
28/10/2023
Encke and the Tadpoles
27/10/2023
Dust and the Western Veil Nebula
18/10/2023
Mu Cephei
12/10/2023
Hidden Orion from Webb
10/10/2023
Edwin Hubble Discovers the Universe
06/10/2023
IC 2118: The Witch Head Nebula
04/10/2023
MyCn 18: The Engraved Hourglass Planetary Nebula
03/10/2023
The Deep Lagoon
28/09/2023
IC 4592: The Blue Horsehead Reflection Nebula
26/09/2023
Cosmos in Reflection
22/09/2023
NGC 7331 and Beyond
14/09/2023
Star Factory Messier 17
08/09/2023
The Large Cloud of Magellan
07/09/2023
Cygnus: Bubble and Crescent
04/09/2023
NGC 7023: The Iris Nebula
02/09/2023
The Crew-7 Nebula
31/08/2023
Star Formation in the Pacman Nebula
28/08/2023
Three Galaxies and a Comet
27/08/2023
The Pistachio Nebula
22/08/2023
A Cosmic Zoo in Cepheus
17/08/2023
The Ring Nebula from Webb and Hubble
14/08/2023
Messier 51 in 255 Hours
11/08/2023
The Pelican Nebula in Gas, Dust, and Stars
07/08/2023
NGC 1360: The Robin's Egg Nebula
05/08/2023