Back to Glossary
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 Large Cloud of Magellan
16/10/2010
Vista with NGC 2170
15/10/2010
Clusters, Hartley, and the Heart
14/10/2010
Pacman and Hartley
07/10/2010
Horsehead and Orion Nebulas
05/10/2010
Hubble's Lagoon
02/10/2010
Coreshine from a Dark Cloud
30/09/2010
Melotte 15 in the Heart
25/09/2010
Dark Clouds of the Carina Nebula
19/09/2010
The Veil Nebula
16/09/2010
An Extraordinary Spiral from LL Pegasi
14/09/2010
Vela Supernova Remnant
10/09/2010
Cepheus: Trunk to Bubble
09/09/2010
Space Shuttle Tribute Poster: Endeavour
07/09/2010
The Bubble Nebula
02/09/2010
The Annotated Galactic Center
31/08/2010
M27: Not a Comet
26/08/2010
Pelican Nebula Close-up
19/08/2010
IRAS 05437+2502: An Enigmatic Star Cloud from Hubble
09/08/2010
M8: The Lagoon Nebula
05/08/2010
The Trifid Nebula is Stars and Dust
28/07/2010
Messier 76
23/07/2010
Dark River, Wide Field
19/07/2010
Shaping NGC 6188
16/07/2010
Dim World, Dark Nebula
08/07/2010
The Starry Night of Alamut
25/06/2010
The Dark Tower in Scorpius
24/06/2010
Starry Night Scavenger Hunt
15/06/2010
The Red Rectangle Nebula from Hubble
14/06/2010
The Medusa Nebula
12/06/2010