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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"
Young Stars, Stellar Jets
28/07/2023
IC 4628: The Prawn Nebula
26/07/2023
The Eagle Nebula with X-ray Hot Stars
25/07/2023
Galactic Cirrus: Mandel Wilson 9
21/07/2023
Milky Way above La Palma Observatory
18/07/2023
Shells and Arcs around Star CW Leonis
17/07/2023
Meteor and Milky Way over the Alps
16/07/2023
Stars, Dust and Nebula in NGC 6559
10/07/2023
Doomed Star Eta Carinae
09/07/2023
Messier 24: Sagittarius Star Cloud
28/06/2023
Stars and Dust across Corona Australis
22/06/2023
The Busy Center of the Lagoon Nebula
19/06/2023
M15: Dense Globular Star Cluster
15/06/2023
The Shark Nebula
14/06/2023
Elephant's Trunk and Caravan
08/06/2023
In the Center of the Trifid Nebula
05/06/2023
Messier 101
02/06/2023
M27: The Dumbbell Nebula
30/05/2023
Milky Way over a Turquoise Wonderland
29/05/2023
Cat's Eye Wide and Deep
25/05/2023
WR 134 Ring Nebula
18/05/2023
M16: Eagle Nebula Deep Field
15/05/2023
The Helix Nebula from CFHT
07/05/2023
Carina Nebula North
01/05/2023
The Tarantula Nebula from SuperBIT
27/04/2023
The Medulla Nebula Supernova Remnant
24/04/2023
NGC 1333: Stellar Nursery in Perseus
22/04/2023
The Dark Seahorse in Cepheus
20/04/2023
M2-9: Wings of a Butterfly Nebula
16/04/2023
NGC 206 and the Star Clouds of Andromeda
12/04/2023