Ep. 791: Chang'e Sample Return
In this episode Fraser Cain and Dr. Pamela Gay explore China's Chang'e lunar sample‑return program, covering the progression from early orbital missions to the successful Chang'e‑5 near‑side return and the ambitious Chang'e‑6 far‑side landing in the Apollo crater. They highlight the technical feats of precision landings, in‑space sample transfer, and the use of the Earth‑Moon L2 point for post‑mission experiments, as well as the scientific discoveries—new lunar minerals and evidence that volcanic activity persisted much longer than previously thought. The hosts also discuss how these missions lay groundwork for future Chinese crewed lunar flights and broader questions about the Moon’s asymmetry and formation.
Ep. 789: What Happens When a Planet's Star Dies
In this episode of Astronomy Cast, host Frizzo Kane and planetary scientist Dr. Pamela Gay explore the fate of planetary systems when their host stars die, focusing on our Sun’s evolution into a red giant and then a white dwarf....
Ep. 788: Life's Molecules Form in Space
In this episode Fraser Cain and Dr. Pamela Gay explore how life's building blocks are formed in space, tracing the history from early abiogenesis experiments to modern discoveries of complex organic molecules in interstellar clouds, comets, and asteroid samples. They...
Ep. 785: Magnetars
Astronomy Cast’s episode 785, hosted by Fraser Cain and Dr. Pamela Gay, dives into magnetars—highly magnetized neutron stars whose fields can reach 10^15 gauss. The hosts recount the 2004 giant gamma‑ray flare that exposed the destructive power of these stellar...
Ep. 784: Pulsar-Powered Science
Astronomy Cast episode 784, released Feb 16, 2026, features hosts Fraser Cain and Dr. Pamela Gay exploring how pulsars—dead, rapidly rotating stars—function as precise cosmic clocks. The show explains that pulsar timing enables detection of nanohertz gravitational waves, autonomous spacecraft...