United Airlines – Cosmic Log

Boeing and NASA say they’ll collaborate with Seattle-based Alaska Airlines and four other major airlines on the Sustainable Flight Demonstrator project, which aims to put Boeing’s innovative X-66 braced-wing aircraft design through flight tests in the 2028-2029 time frame.

The X-66A makes use of a concept known as the Transonic Truss-Braced Wing, or TTBW, which features ultra-long, ultra-thin, drag-reducing wings that are stabilized by diagonal struts.

The demonstrator aircraft will also incorporate parallel advancements in propulsion systems, materials and system architecture. When all those factors are combined, the single-aisle X-66A should reduce fuel requirements and carbon emissions by up to 30% relative to today’s domestic airplane fleet.

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Boom Supersonic attracts a big-name customer, Virgin Galactic signs up another researcher for a suborbital spaceflight, and new questions are raised about NASA’s James Webb Space Telescope. Get the details on the Web:

United boosts Boom Supersonic

United Airlines says it’s agreed to buy 15 of Boom Supersonic’s faster-than-sound jets once they come onto the market. Colorado-based Boom is gearing up to start flight testing for a subscale prototype of its Overture jet, known as the XB-1. Those tests are slated to open the way for the Overture’s rollout in 2025, first flight in 2026 and the start of commercial air service at speeds of up to Mach 1.7 by 2029. That could cut Seattle-to-Tokyo travel time from 8.5 hours to 4.5 hours.

The deal makes United the first U.S. airline to sign a purchase agreement with Boom, providing a significant boost to the startup. Boom says it now has purchase agreements and options for 70 Overture jets in its order book. But wait, there’s more: The jets will be designed to use a type of sustainable aviation fuel that’s meant to allow for flight operations with net-zero carbon emissions.

Virgin Galactic signs up science star

Virgin Galactic is reserving a suborbital spaceflight on VSS Unity, its SpaceShipTwo rocket plane, for bioastronautics researcher Kellie Gerardi. During her flight, the timing of which hasn’t yet been set, Gerardi will support a bio-monitoring experiment drawn up by Carré Technologies Inc. (Hexoskin) with the support of the Canadian Space Agency, as well as a free-floating fluid configuration experiment.

Gerardi, who’s affiliated with the International Institute for Astronautical Sciences, is also known for TikTok videos and Instagram postings that explore the intersection of her career and her personal life. She joins planetary scientist Alan Stern in holding a reservation for a dedicated research flight on Virgin Galactic. Last month, the company conducted its first 50-mile-high, rocket-powered flight test from its home base at Spaceport America in New Mexico. Commercial service could begin within the coming year.

The latest buzz on the Webb Telescope

NASA is fine-tuning the schedule for this year’s launch of the James Webb Space Telescope, widely seen as the successor to the 21-year-old Hubble Space Telescope. The space agency had been targeting Oct. 31 for launch of the $10 billion observatory from French Guiana, using a European Ariane 5 rocket. But logistical complications are leading NASA to look at launch dates in November or early December.

Another complication has to do with the telescope’s name: NASA’s Paul Hertz is reported as saying at this week’s meeting of a space science advisory committee that the space agency is reviewing the historical record surrounding James Webb, the late NASA administrator after whom the telescope is named. A petition circulating among astronomers has called for a new name because of claims that Webb acquiesced to homophobic policies during the 1950s and 1960s.