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 100-year archive. Subscribers can explore our archive here and read key Aviation Week articles on NASP here:

• Reagan Endorses Station, Advanced Transport (Feb. 10, 1986)
• X-30 Technology Advancing Despite Management Rift (March 7, 1988)
• The X-30: Leading The Way Into The Hypersonic Era (Nov.13, 1989)
• Senate Balks At Raising X-30 Funds, Placing NASP’s Future In Doubt (June 29, 1992)
• Editorial: Recommit To Hypersonics (Nov. 30, 2009)

Audio Clip

Feb. 4, 1986: President Reagan's State of the Union Address (C-SPAN)

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.

How will a second Trump administration affect the defense industry and global alliances? Listen in as the McCain Institute’s executive director Evelyn Farkas joins Aviation Week's Joe Anselmo and Michael Bruno to discuss.