Collision in our planetary system: it started with an event on Jupiter

Feb 11

The direct observation of impacts in our planetary system started in 1994 when astronomers could directly observe the impacts of cometary fragments on Jupiter: the newly discovered comet Shoemaker-Levi was caught by the large gravitational field of Jupiter. First its orbit was changed. Later Jupiter´s gravitational forces became larger than the inner stability of the comet which resulted in a break-up of the comet. Since that a planetary pearl necklace approach Jupiter

Recent collision in our planetary system:about recent cratering on Mars

Feb 06

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

Jan 22

Comet Lovejoy, photographed by Norbert PailerIntroductory 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

NEO coming close by

Jan 08

Asteroid representation
An representable image of an asteroid. Note: This is not 2004 BL86. Nobody knows how that one looks like. Yet. Image credit: NASA.

Something big is heading our way… A big space-rock of around 500m diameter… Coming in at a speed of multiple kilometers per second… But fortunately, it is most likely to miss us by approximately 1.2 million kilometers. That may sound