Chelyabinsk: one year later
Collision in our planetary system: it started with an event on Jupiter
Recent collision in our planetary system:about recent cratering on Mars
A relatively large crater was suddenly detected by the NASA Mars Reconnaissance Orbiter (MRO) on the surface of Mars. This exciting discovery was made by the High Resolution Imaging Science Experiment HIRISE which saw for the first time an about 30 m diameter crater in the center of a colorful radial burst pattern. This crater appeared obviously in the time between July 2010 and May 2012. Based on apparent changes between those before-and-after images
Rosetta wake-up: “Year of the Comet” Successfully Opened
Introductory remark. At the end of November 2013 we have had some sort of Cometary Festival: Five relatively bright comets were on the early morning sky – more than ever. One of these objects, the comet Lovejoy, was caught with the help of my self-made telescope in the early morning of November 27, 2013.
Comet Lovejoy in the morning of November 27, 2013 photographed with the