Show Notes
Think you're having a hot summer? Try living on 55 Cancri-e, a super-Earth with daytime temperatures above 4000 degrees Fahrenheit. Most of these super-Earths orbit frighteningly close to their host stars and have long since had their atmospheres scraped away, leaving them baked, parched rocks. But some, like 55 Cancri, still have dense envelopes of air. How is that possible, when the planet is 20 times closer to its star than our own planet Mercury? Dr. Laura Schaefer explains how molten lava worlds defy the odds. Plus: Starship update, the first orbital data centers, and a new year on Mars.
Headlines:
SpaceX's Starship Achieves First Full Orbital Flight With Satellite Deployments
Google and Planet Labs Launch AI Data Center Satellite
Multiple SpaceX Launches Within Hours Mark a New Operational Standard
Cowboy Space Debuts Power-Beaming AI Data Center in Orbit
Mars Celebrates a New Year on Its Extended Journey Around the Sun
NASA Anniversary and Notable Space Birthdays Noted
Main Topic: Living on Lava Worlds—Atmospheres, Extreme Planets, and the Search for Life
Early Exoplanet Detection Methods and Evolution of Exoplanet Surveys
Cosmic Shoreline Concept: How Gravity and Stellar Radiation Shape Planetary Atmospheres
Airless Valleys, Sandbars, and Other New Categories for Rocky Exoplanets
Permanent Magma Oceans: Why Some Lava-covered Worlds Retain Atmospheres
Volatiles, Atmosphere Loss, and The Soda-Bottle Effect on Hot Exoplanets
Sandbar Regime: Superheated Planets Keep Atmospheres Longer Than Expected
Case Study: 55 Cancri e and the Myth of the Diamond Planet
K2-18b: Possibilities of a Water World or Another Magma-Lava Hybrid
Redefining Goldilocks Zones With Atmospheric Survival Factors
Tidal Heating, Volcanism, and Dynamics Shaping Exoplanet Atmospheres
Future Directions: Webb Telescope, Habitable Worlds Observatory, and Prospects for Imaging True "Earths"
Hosts: Rod Pyle and Tariq Malik
Guest: Dr. Laura Schaefer
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