BEGIN:VCALENDAR VERSION:2.0 PRODID:-//TYPO3/NONSGML Calendar Base (cal) V1.11.1//EN METHOD:PUBLISH BEGIN:VEVENT UID:www.uni-konstanz.de_338_34705 DTSTAMP:20190913T061915Z DTSTART:20191022T131500Z DTEND:20191022T144500Z CATEGORIES:Kolloquien, Physik SUMMARY:Begr├╝├čunge der Master-Studierenden im Physikalisches Kolloquium: Space Debris DESCRIPTION:Many technologies\, on which our daily live relies on\, are satellite based\, e.g. GPS\, weather forecast\, satellite TV\, and communication. In total 1700 active satellite provide many different services. For the next years a strong increase in the number of satellite is expected including large satellite constellation. Beside the active satellite 28000 space debris objects larger than 10 cm orbit in space. These objects pose a threat to operational satellites and can lead to a cascading effect\, the so called Kessler syndrome. At the German Aerospace Center (DLR) we develop techniques to track space debris precisely with laser technologies. In the future high power lasers can provide the possibility to modify the trajectory of space debris for collision avoidance through photon pressure or even remove space debris through laser ablative processes. ATTACH: ATTACH: ORGANIZER;CN="Der Fachbereichssprecher": END:VEVENT END:VCALENDAR