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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"
Two Hemisphere Night Sky
27/02/2020
LDN 1622: Dark Nebula in Orion
21/02/2020
Orion over the Central Bohemian Highlands
18/02/2020
NGC 2392: Double-Shelled Planetary Nebula
16/02/2020
Carina Nebula Close Up
15/02/2020
Spitzer's Trifid
13/02/2020
Cosmic Clouds in the Unicorn
08/02/2020
NGC 7331 Close Up
07/02/2020
A Sunset Night Sky over the Grand Canyon
04/02/2020
Star Formation in the Tadpole Nebula
28/01/2020
The Hyades Star Cluster
22/01/2020
M1: The Incredible Expanding Crab Nebula
Video
19/01/2020
Stars and Dust in Corona Australis
12/01/2020
IC 405: The Flaming Star Nebula
07/01/2020
Messier 20 and 21
30/12/2019
The Northern Winter Hexagon
26/12/2019
The Horsehead Nebula
17/12/2019
Decorating the Sky
12/12/2019
Geminid Meteors over Chile
08/12/2019
Pleiades to Hyades
06/12/2019
M27: The Dumbbell Nebula
03/12/2019
NGC 6995: The Bat Nebula
25/11/2019
Simeis 147: Supernova Remnant
21/11/2019
Young Stars in the Rho Ophiuchi Cloud
17/11/2019
M16 and the Eagle Nebula
15/11/2019
NGC 3572 and the Southern Tadpoles
08/11/2019
Messier 45: The Daughters of Atlas and Pleione
07/11/2019
21st Century M101
06/11/2019
Near the Center of the Lagoon Nebula
04/11/2019
Inside the Flame Nebula
02/11/2019