Carl Sagan Institute

"That's home. That's us." Carl Sagan As we gaze at the beauty of our own Earth, we can't help but wonder if life exists out there in the cosmos

Read the paper itself here! academic.oup.com/mnras/article/… (5/5)

A diagram depicting habitable zone boundaries across star types with data from this research. Earth is plotted alongside 45 exoplanets with radii less than 2 times or masses less than 5 times that of Earth, making them potentially rocky worlds. (4/5)

Astronomers now have some new places to search for life! 👀 In a new paper today, Carl Sagan Institute fellows have identified 45 potentially Earth-like worlds More at Cornell A&S: news.cornell.edu/stories/2026/0… Interactive images: gillislowry.com/rocky-hz-catal… 🧵(1/4)

This research follows Dr. Turner's possible 1st detection of an exoplanet in the radio (published in 2021) See the CSI interview below 👇: youtube.com/watch?v=hC3ir9…

Papers available for free: "The detection of circularly polarized radio bursts from stellar and exoplanetary systems" nature.com/articles/s4155… "A circularly polarized low-frequency radio burst from the exoplanetary system HD 189733" aanda.org/articles/aa/fu…

⭐️New Research from CSI Fellows⭐️ Dr. Jake Turner was a co-author on new research that has detected radio emission from dwarf stars and possibly even from exoplanets 📡🪐 Press Release: as.cornell.edu/news/novel-way…

⭐️New Research from CSI Fellows⭐️ Dr. Ligia Coelho (@lpfcoelho) & Dr. Lisa Kaltenegger (@KalteneggerLisa) just published a new paper on how we can search for life in the clouds of other Earths Press Release : news.cornell.edu/stories/2025/1… 👇More info on the result by Dr. Coelho👇

Happy Halloween! ✨ 👻 🎃 Jack-o’-lanterns aren’t the only signs of life that glow in the dark. Some organisms on Earth do, too. Would a distant planet full of glow-in-the-dark aliens be detectable to our telescopes? Find out here! : bsky.app/profile/carlsa…

6000 exoplanets. We’ve found worlds orbiting all sorts of stars. Learn more at our Bluesky! bsky.app/profile/carlsa… 🪐🪐🪐

Just over five hours until Cornell's Alpha CubeSat (led by CSI fellows and students) launches on its way to the International Space Station! Learn more about the satellite, its lightsail, and its holograms at alphacubesat.cornell.edu, and tune into the livestream there!

What do you see in the light from planet TRAPPIST-1 e? Signs of alien life? Not yet... Read more: bsky.app/profile/carlsa…

CSI Research spotlight! Are dinosaurs easier to detect from space than humans? Check out our Bluesky thread to learn how Earth's reflected light over time can aid in the search for life! bsky.app/profile/carlsa…

And here’s the @CornellNews story on @KalteneggerLisa’s award: news.cornell.edu/stories/2025/0…

Image credits: (Sagan Medal) Alexander Tsiaras (Prof. Kaltenegger TED Talk) Erin Lubin / TED

Prof. Kaltenegger has "significantly contributed to a public understanding of, and enthusiasm for, planetary science. Dr. Kaltenegger has, throughout her career, made communication and engagement a priority," said the AAS prize committee. Read more: news.cornell.edu/stories/2025/0…

CONGRATULATIONS to Carl Sagan Institute Director, Prof. Lisa Kaltenegger, on receiving the 2025 Carl Sagan Medal of Excellence in Public Communication of Planetary Science! This distinguished prize is awarded by the American Astronomical Society. @TEDTalks @Cornell @CornellCAS