Herman, F., Anderson, B. & Leprince, S. Mountain glacier velocity variation during a retreat / advance cycle quantified using sub-pixel analysis of ASTER images. (antarcticglaciers.org)
In 1807 German astronomer Heinrich Olbers discovered Vesta, the fourth of these asteroids (so named because they each resemble a star — aster in Latin — through a telescope). (discovermagazine.com)
Image Credit: NASA images created by Jesse Allen, Earth Observatory, using data provided courtesy of NASA / GSFC / METI / ERSDAC / JAROS, and the U.S. / Japan ASTER Science Team.) (earthtimes.org)