Thursday, January 23, 2014
I have nothing to add to these articles except that it's a fantastic discovery that makes Dawn's arrival at Ceres in a year all the more exciting:
Observations of the Solar System's biggest asteroid suggest it is spewing plumes of water vapour into space
Herschel discovers water vapour around dwarf planet Ceres
Current distance to Ceres: 28 million km, which is about twice as close as Venus ever gets to us.