Guy Norris

Listen in as Aviation Week's Jeremy Kariuki, Molly McMillin, Bill Carey and Guy Norris discuss the latest news, live from NBAA-BACE in Las Vegas, Nevada.

Once known as UFOs, sightings of unidentified anomalous phenomena present a thorny issue for the aviation community.

The emergence over the past 18 months of not one but two airliner projects targeting the large single aisle and mid-market sectors is a clear signal that the airlines want new challengers to the Airbus-Boeing duopoly.

Contrails from hydrogen-fueled aircraft are expected to form more readily and be more widespread than those from jet-fueled aircraft but will have less of a climate impact due to their lower density, predicts a Japanese study.

As interest grows in the potential efficiency benefits of blended wing body airliners, California-based startup Natilus has become the latest company to announce plans to develop a passenger aircraft with this configuration.

COLORADO SPRINGS—Reaction Engines, the UK-U.S.-based pioneer of hypersonic propulsion and thermal management systems, has been forced into closure after failing to raise around £20 million ($25.7 million) in additional funding.

SpaceX's Starship booster “catch” at the launchpad wowed the space world, but big hurdles remain to launching humans to Mars in 2028.

This year's National Business Aviation Association Convention and Exhibition was the scene for the debut of market forecasts as well as announcements of aircraft updates and new regulations.