After nearly half a century, Russia is again making a lunar play. Its Luna-25 mission is endeavoring to put a robotic lander near the moon’s south pole. This podcast provides some context as to how and why.

How realistic are warp drives and faster-than-light travel? What does it take to ride a bubble in space? Those are questions  former NASA propulsion physicist Sonny White and theoretical physicist Miguel Alcubierre have been working on ... with somewhat different conclusions. 

Dr. Janet Kavandi, a distinguished astronaut and veteran of three space Shuttle missions, is the current president and chief science officer of Sierra Space, a Colorado-based aerospace company developing a commercial space plane and space station, known as The Dream Chaser and Orbital Reef. Kavandi explains not only what is to be gained in space, and what Sierra Space is up to, but also what humanity itself might begin to look like once it lives there.