Free Download Alien Signals? Investigating the Possible Life Signature on K2-18b: How Astronomers Uncovered a Mysterious Chemical Signature 120 Light-Years from Earth by Dinesh Aswani
English | April 16, 2025 | ISBN: N/A | ASIN: B0F59QJ7CS | 59 pages | EPUB | 10 Mb
Are we alone in the universe-or are we on the edge of discovering our cosmic neighbors?
In 2023, NASA's James Webb Space Telescope detected a startling chemical signature in the atmosphere of K2-18b, a planet 120 light-years from Earth. Alongside water vapor and methane, the planet may harbor dimethyl sulfide (DMS)-a molecule linked to biological life on Earth.
In Alien Signals?, author Dinesh Aswani takes readers on a journey across the frontiers of space, science, and speculation. Through 10 engaging chapters, this book explores:What makes K2-18b so unique among thousands of discovered exoplanetsHow scientists detect atmospheric biosignatures across light-yearsThe life-or-no-life debate surrounding DMS and alien chemistryThe revolutionary role of the James Webb Space Telescope (JWST)Other exoplanets that may harbor life-and how we plan to find itThe philosophical, scientific, and spiritual implications of discovering extraterrestrial lifeFrom Hycean worlds and habitability zones to interstellar curiosity and cautious skepticism, this thought-provoking exploration invites you to consider one of humanity's oldest questions in a brand-new light.
Perfect for fans of astrobiology, space science, astronomy, and cosmic mystery.
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