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dark nebula |
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dark nebula [¦därk ‚neb·yə·lə] (astronomy) A cloud of solid particles which absorbs or scatters away radiation directed toward an observer and becomes apparent when silhouetted against a bright nebula or rich star field. Also known as absorption nebula. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The researchers found signs of the amino acid in the radio-wave region of the spectra from three giant molecular clouds. A project involving JPL and Caltech scientists, among others, to study the process by which stars form out of giant molecular clouds of gas within our galaxy. Infrared space also provides information about much colder objects, such as smaller stars too dim to be detected by their visible light, extra solar planets and giant molecular clouds. |
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