Release Date: May 21, 2018 1:00PM (EDT)
Image Use: Copyright
About This Image
Spectroscopy can identify planets capable of supporting life. Note the differences between the spectroscopic data of these three solar system planets; Mars, Earth, and Venus. Dips indicate varying types of gases in their atmospheres. Although all three planets show a significant dip in the spectroscopic data for carbon dioxide, only Earth clearly shows the presence of water, ozone, and carbon dioxide.