There's an effect called photophoretic propulsion. You could have seen it in a Crookes radiometer. One of the NIAC awards of 2023 was granted to a team that hopes to use this effect to develop a propulsion system. This can allow flying in altitudes nothing else can fly and possibly even explore other worlds.🦄 Support us on Patreon: https://patreon.com/universetoday👉 More about the NIAC grant: https://www.nasa.gov/directorates/spacetech/niac/2023/Photophoretic_Propulsion_Enabling_Mesosphere_Exploration/https://bargatin.seas.upenn.edu/📺 VIDEO VERSIONhttps://youtu.be/BzG64g4UEHo📰 EMAIL NEWSLETTERRead by 60,000 people every Friday. Written by Fraser. No ads.Subscribe. It's FREE: https://universetoday.com/newsletter🎧 PODCASTSUniverse Today: https://universetoday.fireside.fm/Astronomy Cast: http://www.astronomycast.com/🤳 OTHER SOCIAL MEDIATwitter: https://twitter.com/fcainTwitter: https://twitter.com/universetodayFacebook: https://facebook.com/universetodayInstagram: https://instagram.com/universetoday📩 CONTACT FRASERfrasercain@gmail.com⚖️ LICENSECreative Commons Attribution 4.0 International (CC BY 4.0)Support Universe Today Podcast