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For 72 hours, enjoy 15% OFF on all Hoverpens with code SABINE, or click on the link https://noviumdesign.shop/sabine - Free shipping to most countries. Also on Amazon: https://noviumdesign.shop/jTAp1f The search for life on another planet is one of the most exciting things in astrophysics. As humanity has searched the universe for signs of life, we’ve found a surprising number of clues suggesting that alien life might exist on multiple other planets. Let’s take a look at how this search is developing and what “signs of life” really are. 👕T-shirts, mugs, posters and more: ➜ https://sabines-store.dashery.com/ 💌 Support me on Donorbox ➜ https://donorbox.org/swtg 👉 Transcript with links to references on Patreon ➜ https://www.patreon.com/Sabine 📝 Transcripts and written news on Substack ➜ https://sciencewtg.substack.com/ 📩 Free weekly science newsletter ➜ https://sabinehossenfelder.com/newsletter/ 👂 Audio only podcast ➜ https://open.spotify.com/show/0MkNfXlKnMPEUMEeKQYmYC 🔗 Join this channel to get access to perks ➜ https://www.youtube.com/channel/UC1yNl2E66ZzKApQdRuTQ4tw/join 📚 Buy my book ➜ https://amzn.to/3HSAWJW #sciencenews #science #astronomy #space Scientists have found tentative evidence for life in another solar system, with recent James Webb Space Telescope data on exoplanet K2-18b sparking headlines. This video examines what we know about the search for life on exoplanets and why astrophysicists believe they have pretty much found alien life. We'll discuss the concept of exoplanetary biosignatures and the high standard of proof required for official acceptance before we can definitively say we've found signs of life on habitable planets.