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European conference on space debris risks and mitigation
by Staff Writers
Paris (ESA) Apr 06, 2017

The geostationary ring is one of the most congested regions in space: This is the only orbit in which satellites move synchronously with Earth. It is an ideal choice for vital meteorological and telecommunication satellites. The average distance between two objects here is only 190 km. Defunct spacecraft in geostationary orbit can drift and endanger satellites in their vicinity. Image courtesy ESA/ID and Sense/ONiRiXEL, CC BY-SA 3.0 IGO.

The 7th European Conference on Space Debris, to be held 18-21 April at ESA's Space Operations Centre in Darmstadt, Germany, will provide a unique Space Debris User Portal

The 7th European Conference on Space Debris, to be held 18-21 April at ESA's Space Operations Centre in Darmstadt, Germany, will provide a unique forum for leading scientists, engineers, managers, space operators, industry, academia and policy-makers from all major spacefaring nations.

Media are invited to attend the overall conference, in particular the opening presentations and the concluding press conference.

Today, around 750 000 objects larger than 1 cm are orbiting Earth. At average speeds of 40 000 km/h, impacts on space hardware would deliver roughly the energy equivalent to the explosion of a hand grenade. Consequences for our operational satellites could be severe.

About 18 000 of these pieces of debris are large enough to be regularly monitored by powerful surveillance systems. Such monitoring data are used by space agencies such as ESA to avoid collisions. The majority of these objects have been generated by more than 250 explosions.

With the increase in the number of objects in space, experts believe that collisions among these objects, some of which have already occurred, might become the primary source for new fragments in orbit. Experts have proposed countermeasures that would mitigate this problem. However, significant challenges are faced by spacefaring organisations to implement these measures.

The 7th European Conference on Space Debris is the largest gathering in the world on this topic. The conference will be opened by ESA Director General Jan Woerner and NASA's former orbital debris chief scientist Donald Kessler.

Highlight talks will address acute issues like the current practice in implementing debris avoidance measures, novel concepts for the active removal of debris, and the deployment of large constellations of several thousand satellites for telecommunications. Finally, the proliferation of small satellites, CubeSats and nanosatellite swarms will be addressed.

The topics of megaconstellations, active removal and European efforts toward space situational awareness and surveillance, measurements and modelling will be addressed. The important issue of atmospheric reentry survival and the risk on the ground as well as aspects of hypervelocity impacts in space will be discussed by top global experts.

Space blanket floats away during historic spacewalk
Miami (AFP) March 30, 2017
A space blanket floated away from American astronaut Peggy Whitson on Thursday as she made a historic spacewalk outside the International Space Station, setting a new record for the most spacewalks by a woman. The crew was not in danger due to the mishap, which occurred when Whitson was trying to fold up a bulky cloth cover, known as an axial shield, and put it in a bag. The incident bri ... read more

Related Links
Space Debris at ESA
Space Technology News - Applications and Research

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