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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"
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
The Seagull Nebula
19/01/2023
M1: The Crab Nebula from Hubble
15/01/2023
Stardust in Perseus
12/01/2023
NGC 2264: The Cone Nebula
10/01/2023
Messier 45: The Daughters of Atlas and Pleione
05/01/2023
Horsehead and Flame
29/12/2022
Messier 88
28/12/2022
NGC 6164: Dragon's Egg Nebula and Halo
26/12/2022
Thor's Helmet
20/12/2022
The Tadpole Nebula in Gas and Dust
19/12/2022
An Unusual Globule in IC 1396
12/12/2022
NGC 7293: The Helix Nebula
07/12/2022
M16: A Star Forming Pillar from Webb
06/12/2022
The Light, the Dark, and the Dusty
30/11/2022
The Gum Nebula Supernova Remnant
29/11/2022
Lynds Dark Nebula 1251
24/11/2022
The Butterfly Nebula from Hubble
21/11/2022
The Protostar within L1527
18/11/2022