Hypersonics expert and former chief scientist of the U.S. Air Force Dr. Mark Lewis joins Aviation Week's Christine Boynton, Guy Norris and Graham Warwick to examine the X-30 NASP program, and how—decades later—its legacy still lives on. Check 6 Revisits delves into Aviation Week's more than...

Sixteen years after the launch of its ground-breaking N+3 project, NASA is using the same model to once again accelerate the pace of advancements as aviation strives for net-zero carbon emissions by 2050. NASA's Rich Wahls joins the podcast to discuss AACES.