Show notes
Anna and Avery cover NASA's newly funded concept for spherical, propeller-free "aerobots" that could one day explore the methane-carved cave systems of Saturn's moon Titan. Plus: SpaceX breaks its own launch-turnaround record with two Falcon 9 missions 38 minutes apart, Rocket Lab lands its biggest-ever defense contract to build "Flatellites" for the U.S. Space Force, and a geomagnetic storm arriving today could bring aurora to high latitudes tonight. **Full show notes:** Today's episode — S05E169, Monday August 17, 2026: **Main story: NASA funds spherical "Aerobots" to explore Titan's caves.** A NASA Innovative Advanced Concepts (NIAC) Phase 1 grant is backing SPARK (Solid-state Propulsion for Autonomous Reconnaissance of Karst) — small, propeller-free spherical robots using electrohydrodynamic (EHD) thrusters, led by Daniel Drew (University of Hawaii) with JPL's Ethan Schaler and Jacob Izraelevitz and Michael Malaska (Blue Marble Space Institute of Science). The concept targets Titan's karst terrain — sinkholes and caves carved by liquid methane and ethane rather than water — as a candidate site for astrobiology research. Phase 1 covers nine months; a Phase 2 award could follow. No confirmed mission link yet, though NASA's Dragonfly rotorcraft is headed to Titan around 2028. **SpaceX sets a new launch-turnaround record.** Two Falcon 9 missions launched 38 minutes apart on August 15 — a Globalstar satellite mission from Cape Canaveral Space Force Station at


