<http://schema.org/caption>
"A composite image of the Whirlpool Galaxy (also known as M51) - the green image from the Hubble Space Telescope shows the optical wavelength, while the submillimetre light detected by SCUBA-2 is shown in red (0.85 mm) and blue (0.45 mm) (Photo: Joint Astronomy Centre, University of British Columbia and NASA/HST/STScI) "^^<http://www.w3.org/2001/XMLSchema#string>
<http://newatlas.com/scuba-2-submillimeter-camera/20750/>