Humanity is leaving more and more traces in space. Every mission, every launch of a satellite means more objects in earth's orbit. Countless parts are now orbiting our planet. However, this waste also means growing danger not only for manned spaceflight, but also for functioning satellites, on which our digital infrastructure depends. Scientist and astronaut Ulrich Walter explains what space junk is made of and how it should be avoided in the future.

Watch all SPACETIME episodes    • SpaceTime  Science Show  
Watch more documentaries    • Full Documentaries  
Subscribe to our full documentary channel    / @weltdocumentary  

#SpaceJunk #science #SpaceTime