We rely on space for our communications, weather monitoring and security. Yet rising levels of space junk increase the risk of collisions, putting these things at risk.

This week we are heading to a space lab in the UK to meet the scientists building a special waste collector that will clean up defunct satellites. We’ll also be heading to the Himalayas to see how an innovative project is training sherpas in Nepal to clear trash off the mountains using drones.

People Fixing The World from the BBC is about brilliant solutions to the world's problems. We'd love you to let us know what you think and to hear about your own solutions. You can contact us on WhatsApp by messaging +44 8000 321721 or email peoplefixingtheworld@bbc.co.uk. And please leave us a review on your chosen podcast provider.

Presenter: Myra Anubi
Producer: Claire Bates
Sound mix: Annie Gardiner
Voiceovers: Diwakar Pyakurel at BBC Nepali, Hikmat Khadka
Editor: Jon Bithrey

(Image: Myra Anubi and Anna Nash from Astroscale, BBC)