![Dark matter / Galaxy / X-ray astronomy / Gamma ray / Big Bang / Star / Redshift / Interstellar medium / Extinction / Physics / Astronomy / Physical cosmology Dark matter / Galaxy / X-ray astronomy / Gamma ray / Big Bang / Star / Redshift / Interstellar medium / Extinction / Physics / Astronomy / Physical cosmology](https://www.pdfsearch.io/img/2c48306872868acad8eae94c3928ce17.jpg) Date: 2012-11-28 11:56:45Dark matter Galaxy X-ray astronomy Gamma ray Big Bang Star Redshift Interstellar medium Extinction Physics Astronomy Physical cosmology | | A absolute brightness: The apparent brightness a star would have if it were placed at a standard distance of 10 parsecs from Earth. absolute zero: The lowest point on any temperature scale, the temperature at which all (Add to Reading ListSource URL: www.chandra.harvard.eduDownload Document from Source Website File Size: 124,80 KBShare Document on Facebook
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