Tag: clean

  • Space debris – efforts to clean up space

    Space debris – efforts to clean up space

    The European Space Agency (ESA) is part of an international effort to monitor and – ultimately – tackle space debris. This junk – accumulated in orbit since the dawn of the space age sixty years ago – poses an increasing risk to operational spacecraft.

    ESA is developing missions to tackle the problem to help prevent a serious collision in space. The Agency is also monitoring possible dangers caused by fragments of redundant spacecraft falling to Earth, such as China’s space station Tiangong-1 – due to enter the atmosphere in the coming months.

    Visit our Clean Space site to learn more: http://www.esa.int/Our_Activities/Space_Engineering_Technology/Clean_Space

  • Clean Space: Netting a satellite

    Clean Space: Netting a satellite

    ESA’s proposed e.Deorbit mission plans to demonstrate the retrieval and disposal of a derelict satellite from low-Earth orbit. The mission needs to capture a massive, drifting object left in an uncertain state, which may well be tumbling rapidly. Several capture mechanisms are being studied in parallel – including casting a net.

    Polish company SKA Polska won this new ESA Member State’s first competitive contract to design a prototype net gun that could be tested in microgravity on a parabolic flight. Wojtek Gołebiowski of SKA Polska brought it along to the Industry Days of ESA’s Clean Space initiative – tasked with safeguarding both terrestrial and orbital environments – in May 2016. The net gun is comparatively low power (because it was designed for weightlessness) but here he demonstrates how it works on some low-flying drones. Results from firing the net, which is multi-coloured to make it easier to track by cameras, are being used to sharpen the fidelity of software models of net behaviour.

  • ESA presents… Clean Space

    ESA presents… Clean Space

    Clean Space is the European Space Agency’s initiative to safeguard the terrestrial and orbital environments, while boosting the innovation and competitiveness of Europe’s space sector. This animated guide follows a newly-launched satellite as it first enters orbit, in the process explaining the various branches of the Clean Space effort and the different future Clean Space aims to build.

    Now with English, French, German, Dutch, Italian, Greek, Romanian and Swedish subtitles. More languages will be added as they become available.