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magnetic resonance imaging

(Encyclopedia)magnetic resonance imaging (MRI), noninvasive diagnostic technique that uses nuclear magnetic resonance to produce cross-sectional images of organs and other internal body structures. The patient lies...

eccentricity

(Encyclopedia)eccentricity, in astronomy: see orbit. ...

COBE

(Encyclopedia)COBE: see infrared astronomy.

filament

(Encyclopedia)filament, in astronomy: see chromosphere. ...

IRAS

(Encyclopedia)IRAS: see infrared astronomy.

granule

(Encyclopedia)granule, in astronomy: see photosphere. ...

NICMOS

(Encyclopedia)NICMOS: see infrared astronomy.

twinkling

(Encyclopedia)twinkling, in astronomy: see seeing. ...

SOFIA

(Encyclopedia)SOFIA: see infrared astronomy.

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