When Ron Garan, a former Nasa astronaut, was onboard the International Space Station, he saw a long line of lights stretching across Asia. He realised it was a man-made structure: the border between India and Pakistan. This sight, he told the audience at BBC Future’s World-Changing Ideas Summit earlier this month, helped change his view of the planet. We should not forget that we all share one “iridescent biosphere”, he says, and while we may live in separate countries, we can all call Earth our home.
Garan is now chief pilot of the company World View, which is offering balloon flights high into the atmosphere – a trip he hopes will transform people’s perspective of the planet they live on. Watch the video above to hear Garan explain more.
Read more: The astronaut who wants to change how we see the world
Join 700,000+ Future fans by liking us on Facebook, or follow us on Twitter, Google+, LinkedIn and Instagram
If you liked this story, sign up for the weekly bbc.com features newsletter, called “If You Only Read 6 Things This Week”. A handpicked selection of stories from BBC Future, Earth, Culture, Capital, Travel and Autos, delivered to your inbox every Friday.