C7, for instance, means a C major chord with a b7th (Bb). C9 (see Example 3) contains the b7th plus the 9th (D), so there’s ...

CHARIS, an acronym for the Coronagraphic High Angular Resolution Imaging Spectrograph, is part of a major effort in astronomy to find and analyze planets orbiting distant stars, known as exoplanets.

To many people, minor chord progressions in music “sound sad” while songs in a major key “sound happy”. But for researchers who study how people respond to music, it has always been ...

This spectrograph map, generated from data collected by NASA's New Horizons probe, depicts the relatively uniform brightness of the ultraviolet "Lyman-alpha" background surrounding our Sun and its ...

Princeton Instruments is very pleased to announce the company’s IsoPlane SCT-320 spectrograph has been named as a recipient of the prestigious R&D 100 Award for 2013. Award entries are judged by ...