The Orion Nebula is an emission nebula, a giant cloud of gas and dust that's lit from within.
Resembling a creature on the run with flames streaming behind it, the Spitzer image of a dark globule in the emission nebula IC 1396 is in spectacular contrast to the view seen in visible light.
Kaylin examined the cloud that was the emission nebula as her ship raced closer and closer.
Definition of emission nebula in US English:
emission nebula
noun
Astronomy
A nebula that shines with its own light.
〔天文〕发射星云
Example sentencesExamples
The Orion Nebula is an emission nebula, a giant cloud of gas and dust that's lit from within.
Kaylin examined the cloud that was the emission nebula as her ship raced closer and closer.
Resembling a creature on the run with flames streaming behind it, the Spitzer image of a dark globule in the emission nebula IC 1396 is in spectacular contrast to the view seen in visible light.