This week, we’re venturing from the very first paw-prints in orbit to the mind-bending future of interstellar travel. Astronomer David Reneke joins us to reveal how "metajets" could reach Alpha Centauri in our lifetime and why NASA’s massive new Roman Space Telescope is about to turn the lights on in the "dark" parts of our universe. Plus, we look back at the brave animals—from fruit flies to famous chimps—who risked it all so humans could follow. It’s a journey through space-time you won’t want to miss!