Similar to radiant skin in humans, plants also glow when they're well. A European Space Agency (ESA) satellite could use fluorescence to track the health and productivity of vegetation worldwide.
Indonesia Volcano Dusts Surrounding Landscape
Until 2010, Indonesia's Sinabung volcano was dormant. Then a brief burst in 2010 caused the temporary evacuation of about 30,000 nearby residents. The volcano was at it again this February.
