Episode 401 - Space Collisions and cleaning up debris

Dodging collisions faster than a speeding bullet. We look at cleaning up space debris. Explosions and collisions of spaceships is great in sci-fi but bad news for us on Earth. Space is rapidly filling with satellites. What happens to them at the end of their life? Collisions in space (or near misses) are becoming more and more common. How can we clean up space and keep the skies safe for important satellites.
References

1. Crane, L. (n.d.). Two old spacecraft just avoided catastrophically colliding in orbit. Retrieved October 17, 2020, from https://www.newscientist.com/article/2257525-two-old-spacecraft-just-avoided-catastrophically-colliding-in-orbit/
2. Davenport, C. (2020, October 16). A rocket booster and a dead satellite avoided a collision Thursday, illustrating the 'ticking time bomb' of space debris. Retrieved October 17, 2020, from https://www.washingtonpost.com/technology/2020/10/15/space-collision-might-happen-thursday/
3. Marks, P. (2017, April 18). Satellite swarms could increase space junk risk by 50 per cent. Retrieved October 17, 2020, from https://www.newscientist.com/article/2128024-satellite-swarms-could-increase-space-junk-risk-by-50-per-cent/
4. Wall, M. (2019, April 24). Meet OSCaR: Tiny Cubesat Would Clean Up Space Junk. Retrieved October 17, 2020, from https://www.space.com/space-junk-cleanup-cubesat-oscar.html
5. Wall, M. (2020, June 23). Foam 'spider webs' from tiny satellites could help clean up space junk. Retrieved October 17, 2020, from https://www.space.com/space-junk-cleanup-foam-satellite-technology.html
6. Wells, T. (2019, April 24). Rensselaer team developing tool to battle space debris. Retrieved October 17, 2020, from https://phys.org/news/2019-04-rensselaer-team-tool-space-debris.html