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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"
North Star: Polaris and Surrounding Dust
11/04/2023
IC 2944: The Running Chicken Nebula
10/04/2023
The Egg Nebula in Polarized Light
09/04/2023
Rigel Wide
07/04/2023
M57: The Ring Nebula from Hubble
02/04/2023
NGC 4372 and the Dark Doodad
30/03/2023
Sh2-308: A Dolphin Shaped Star Bubble
29/03/2023
Outbound Comet ZTF
24/03/2023
M31: The Andromeda Galaxy
22/03/2023
Dark Nebulae and Star Formation in Taurus
21/03/2023
M1: The Expanding Crab Nebula
Video
20/03/2023
Wolf-Rayet 124
18/03/2023
The Medusa Nebula
17/03/2023
W5: The Soul Nebula
14/03/2023
Orion and the Running Man
10/03/2023
RCW 86: Historical Supernova Remnant
03/03/2023
The Flaming Star Nebula
01/03/2023
Jones-Emberson 1
24/02/2023
Arp 78: Peculiar Galaxy in Aries
23/02/2023
Airglow Sky over France
15/02/2023
The Heart and Soul Nebulas
14/02/2023
Comet ZTF and Mars
13/02/2023
Magellanic Clouds over Chile
11/02/2023
Stellar Wind-Shaped Nebula RCW 58
08/02/2023
In the Heart of the Rosette Nebula
06/02/2023
NGC 2626 along the Vela Molecular Ridge
04/02/2023
Reflections on the 1970s
02/02/2023
Barnard 68: Dark Molecular Cloud
29/01/2023
LDN 1622: The Boogeyman Nebula
25/01/2023
Galaxy Wars: M81 and M82
20/01/2023