Here Comes the Sun: Water Blasts on Comets Tied to Sunlight Cycle
Wednesday, September 23, 2015 - 12:41
in Astronomy & Space
Observations by the European Space Agency's Rosetta spacecraft show that surface ice on Comet 67P/Churyumov-Gerasimenko, which Rosetta has been orbiting since August 2014, appears and disappears on a daily cycle tied to illumination by the sun.