Researchers use different wavelengths to reveal features not visible in white light. |
http://www.lmsal.com/YPOP/Classroom/Lessons/Filters/ |
http://amazing-space.stsci.edu/light/star-light-science.html |
http://vathena.arc.nasa.gov/curric/space/lfs/emspectr.html |
http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html |
http://coolcosmos.ipac.caltech.edu/cosmic_classroom/ir_tutorial/ |
http://www.lbl.gov/MicroWorlds/ALSTool/EMSpec/EMSpec.html |