If an extra-terrestrial civilisation saw the Earth, what technosignatures could they pick up? What could they learn about life on our planet and human civilisation in particular? I'm discussing that with Dr Michael Garrett who is the Director of Jodrell Bank Centre for Astrophysics. 🦄 Support us on Patreon:https://patreon.com/universetoday👉 Simulation of the Earth’s radio-leakage from mobile towers as seen from selected nearby stellar systems:https://academic.oup.com/mnras/article/522/2/2393/702880400:00 Intro02:11 Biosignatures in modern Astronomy06:46 Technosignatures VS biosignatures13:07 Loudest technosignatures of Earth18:27 Earth from the perspective of aliens32:31 Satellite constellations38:00 Going into wires42:49 Leaked transmissions46:09 Becoming an alien hunter📺 VIDEO VERSIONhttps://youtu.be/rkZM9yHY8z0📰 EMAIL NEWSLETTERRead by 60,000 people every Friday. 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 FRASER[email protected]⚖️ LICENSECreative Commons Attribution 4.0 International (CC BY 4.0)