Rocket launches this week According to tracking from Next SpaceFlight, Chinese aerospace firm Landspaceβs ZhuQue-2E Block 2 is scheduled to lift off from the Jiuquan Satellite Launch Center in China at 4:20 a.m. EST on Tuesday, June 9. The ZhuQue-2E is a medium-lift rocket powered by liquid oxygen and methane β the first methane-fueled vehicleContinue reading "SpaceX and Rocket Lab set for liftoff this week"
"If a major meteor shower outburst or storm is forecast during a mission or crew activity, the mission would be delayed or the crew kept inside until the outburst or storm is over."
NASAβsΒ X-59Β AircraftΒ Flies Supersonic for First Time
NASAβs X 59 eXternal Vision System shows Machβ―1.077 on Friday, June 5,β―2026, marking the aircraftβs first time reaching supersonic speed in support of NASAβs Quesst mission. The moment represents a milestone for the aircraft as it transitions to include test flights faster than the speed of sound.
NASA
NASAβsΒ experimentalΒ X-59Β aircraftΒ markedΒ a major milestoneΒ Friday,Β JuneΒ 5,Β when itΒ flew faster than the speed of sound for the first time,Β setting the stage forΒ demonstratingΒ its quiet supersonic capabilitiesΒ later this year.Β
NASA test pilot Jim βClueβ LessΒ took offΒ and landedΒ at Edwards Air Force BaseΒ in California, reaching a top speed ofΒ approximatelyΒ MachΒ 1.1Β (713Β mph)Β and altitude ofΒ 43,400 feet.Β TheΒ X-59βsΒ flight began atΒ 11:08Β a.m.Β PDTΒ and lasted 81Β minutes,Β withΒ the team focusing on flying qualitiesΒ atΒ both subsonic and then supersonic speeds.Β Β
In the coming days, we expect to take the next step and push to Mach 1.4
jared isaacman
NASA Administrator
βX-59 is getting ready for its quiet supersonic debut. Since the aircraftβs first flight on Oct. 28, 2025, the team has made tremendous progress,Β flyingΒ 16Β timesΒ in the last 90 days and getting into a steady test rhythm. In the coming days, we expect to take the next step and push to Mach 1.4,β said NASA Administrator Jared Isaacman βIβm grateful to the NASA team and Lockheed Martin Skunk Works for their help getting us to this point, and I hope this is the first of many collaborations as we rebuild NASAβs X-plane portfolio.βΒ
The X-59 is designed to flyΒ atΒ supersonicΒ speedsΒ while creating only a quiet thump instead of a loud sonic boom.Β For this flight, aΒ NASA Fβ15 chase plane flew nearby toΒ monitorΒ the Xβ59.Β TheΒ loud sonic booms fromΒ the F-15Β obscuredΒ any sound made by the X-59.Β Β
βThe X-59βs first supersonic flight is a testament to Americaβs enduring leadership in science, engineering, and aerospace innovation,β said Michael Kratsios,Β Assistant to the President for Science and Technology and Director of the Office of Science and Technology Policy.Β βThis achievement comes as the Trump Administration continues work to unleash supersonic flight and enable American ingenuity.βΒ
ThisΒ first supersonicΒ flight isΒ aΒ significantΒ milestone, butΒ anΒ eventΒ evenΒ more critical toΒ the mission is upcoming. In just days, theΒ aircraftΒ is expected to makeΒ its firstΒ βmission conditionsβ flight, reaching aΒ cruising speed of Mach 1.4 (925 mph) and altitude of approximately 55,000 feet. The X-59Β alsoΒ will beΒ accompanied by a chase planeΒ for this flight.Β Β
NASAβs X-59 quiet supersonic research aircraft completed its first supersonic flight Friday, June 5,β―2026, marking the first time the aircraft exceeded the speed of sound in support of NASAβs Quesst mission. The milestone represents a major step in flight testing as the aircraft expands into the supersonic portion of its flight envelope.
NASA / Lori Losey
ThisΒ speed andΒ altitudeΒ areΒ theΒ baseΒ conditions for the X-59 when it will eventually fly over several U.S. communities enabling NASA to gather data about how peopleΒ mayΒ perceive itsΒ quiet thump.Β NASA will share this dataΒ with U.S. and international regulators to helpΒ establishΒ newΒ data-driven noise standardsΒ toΒ enable a futureΒ viableΒ market forΒ supersonic commercial flight over land.Β
For the last several months, theΒ X-59Β has beenΒ participatingΒ in an ongoing series of flights where the plane has beenΒ flying at a wide range of speeds and altitudesΒ βΒ a process known as envelope expansion.Β These tests are the firstΒ phase of the X-59βs flight testing. They areΒ focused on performanceΒ and involve chase plane monitoring.Β WhenΒ theΒ aircraftΒ completes thisΒ phaseΒ it will enter another,Β focused on its sound profileΒ in orderΒ toΒ verifyΒ its quietΒ thump capability.Β Β
The X-59 is the centerpiece of NASAβsΒ Quesst mission, which aims toΒ demonstrateΒ quiet supersonic flightΒ and help enable commercial supersonic flight over land worldwide.Β These advancements will helpΒ travelersΒ reach their preferred destinations faster,Β spending less time in the air.Β
ThroughΒ QuesstβsΒ development of the X-59, NASAΒ alsoΒ willΒ deliver design tools and technology for quiet supersonic airliners that will achieve the high speedsΒ desiredΒ by commercial operators withoutΒ disturbingΒ people on the ground. NASA willΒ validateΒ design tools through ground and flight testing,Β providingΒ U.S.Β aircraftΒ manufacturers the ability to explore new quiet supersonic concepts,Β andΒ provide them withΒ confidence that their resultingΒ designsΒ will meetΒ quiet flightΒ requirements.Β Β
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASAβs X-59 eXternal Vision System shows Machβ―1.077 on Friday, June 5,β―2026, marking the aircraftβs first time reaching supersonic speed in support of NASAβs Quesst mission. The moment represents a milestone for the aircraft as it transitions to include test flights faster than the speed of sound.
NASA
NASAβsΒ experimentalΒ X-59Β aircraftΒ markedΒ a major milestoneΒ Friday,Β JuneΒ 5,Β when itΒ flew faster than the speed of sound for the first time,Β setting the stage forΒ demonstratingΒ its quiet supersonic capabilitiesΒ later this year.Β
NASA test pilot Jim βClueβ LessΒ took offΒ and landedΒ at Edwards Air Force BaseΒ in California, reaching a top speed ofΒ approximatelyΒ MachΒ 1.1Β (713Β mph)Β and altitude ofΒ 43,400 feet.Β TheΒ X-59βsΒ flight began atΒ 11:08Β a.m.Β PDTΒ and lasted 81Β minutes,Β withΒ the team focusing on flying qualitiesΒ atΒ both subsonic and then supersonic speeds.Β Β
In the coming days, we expect to take the next step and push to Mach 1.4
jared isaacman
NASA Administrator
βX-59 is getting ready for its quiet supersonic debut. Since the aircraftβs first flight on Oct. 28, 2025, the team has made tremendous progress,Β flyingΒ 16Β timesΒ in the last 90 days and getting into a steady test rhythm. In the coming days, we expect to take the next step and push to Mach 1.4,β said NASA Administrator Jared Isaacman βIβm grateful to the NASA team and Lockheed Martin Skunk Works for their help getting us to this point, and I hope this is the first of many collaborations as we rebuild NASAβs X-plane portfolio.βΒ
The X-59 is designed to flyΒ atΒ supersonicΒ speedsΒ while creating only a quiet thump instead of a loud sonic boom.Β For this flight, aΒ NASA Fβ15 chase plane flew nearby toΒ monitorΒ the Xβ59.Β TheΒ loud sonic booms fromΒ the F-15Β obscuredΒ any sound made by the X-59.Β Β
βThe X-59βs first supersonic flight is a testament to Americaβs enduring leadership in science, engineering, and aerospace innovation,β said Michael Kratsios,Β Assistant to the President for Science and Technology and Director of the Office of Science and Technology Policy.Β βThis achievement comes as the Trump Administration continues work to unleash supersonic flight and enable American ingenuity.βΒ
ThisΒ first supersonicΒ flight isΒ aΒ significantΒ milestone, butΒ anΒ eventΒ evenΒ more critical toΒ the mission is upcoming. In just days, theΒ aircraftΒ is expected to makeΒ its firstΒ βmission conditionsβ flight, reaching aΒ cruising speed of Mach 1.4 (925 mph) and altitude of approximately 55,000 feet. The X-59Β alsoΒ will beΒ accompanied by a chase planeΒ for this flight.Β Β
NASAβs X-59 quiet supersonic research aircraft completed its first supersonic flight Friday, June 5,β―2026, marking the first time the aircraft exceeded the speed of sound in support of NASAβs Quesst mission. The milestone represents a major step in flight testing as the aircraft expands into the supersonic portion of its flight envelope.
NASA / Lori Losey
ThisΒ speed andΒ altitudeΒ areΒ theΒ baseΒ conditions for the X-59 when it will eventually fly over several U.S. communities enabling NASA to gather data about how peopleΒ mayΒ perceive itsΒ quiet thump.Β NASA will share this dataΒ with U.S. and international regulators to helpΒ establishΒ newΒ data-driven noise standardsΒ toΒ enable a futureΒ viableΒ market forΒ supersonic commercial flight over land.Β
For the last several months, theΒ X-59Β has beenΒ participatingΒ in an ongoing series of flights where the plane has beenΒ flying at a wide range of speeds and altitudesΒ βΒ a process known as envelope expansion.Β These tests are the firstΒ phase of the X-59βs flight testing. They areΒ focused on performanceΒ and involve chase plane monitoring.Β WhenΒ theΒ aircraftΒ completes thisΒ phaseΒ it will enter another,Β focused on its sound profileΒ in orderΒ toΒ verifyΒ its quietΒ thump capability.Β Β
The X-59 is the centerpiece of NASAβsΒ Quesst mission, which aims toΒ demonstrateΒ quiet supersonic flightΒ and help enable commercial supersonic flight over land worldwide.Β These advancements will helpΒ travelersΒ reach their preferred destinations faster,Β spending less time in the air.Β
ThroughΒ QuesstβsΒ development of the X-59, NASAΒ alsoΒ willΒ deliver design tools and technology for quiet supersonic airliners that will achieve the high speedsΒ desiredΒ by commercial operators withoutΒ disturbingΒ people on the ground. NASA willΒ validateΒ design tools through ground and flight testing,Β providingΒ U.S.Β aircraftΒ manufacturers the ability to explore new quiet supersonic concepts,Β andΒ provide them withΒ confidence that their resultingΒ designsΒ will meetΒ quiet flightΒ requirements.Β Β
NASAβs X-59 quiet supersonic research aircraft completed its first supersonic flight Friday, June 5,β―2026, marking the first time the aircraft exceeded the s...
NASA has told crew aboard the International Space Station (ISS) to resume normal operations, ending a roughly two-hour period in which five astronauts sheltered inside a docked SpaceX capsule. The shelter order came Friday morning as a precautionary measure to protect crew while Russian cosmonauts attempted a fix on the Zvezda service moduleβs transfer tunnelContinue reading "ISS crew back to normal after emergency shelter order"
NASA announced new contracts for the rovers and landers that will lay the groundwork for the agencyβs proposed $30-billion Moon Base β some of which they plan to launch as soon as this fall β during a May 26 press conference. The announcement offered the most detailed look yet into the Moon Base plan NASAContinue reading "How NASA plans to build a Moon Base"
Days after successfully flying its Quarterhorse unmanned aircraft at supersonic speeds, an industry-first defense aviation company, Hermeus, has received the largest-ever contract awarded by the Defense Innovation Unit (DIU) to demonstrate high-Mach flight combined with high-Mach payload release.
The new $ 159 million award, which increases the original contract to a total of $219 million, will allow Hermeusβ engineers to expand on previous high-Mach test flight milestones in direct partnership with the U.S. Air Force and the U.S. Navy, with the goal of providing the American warfighter with the most advanced arsenal capable of delivering munitions and payloads around the world at record-setting speeds.
βBy delivering flight-ready aircraft and demonstrating payload release at speed, we will prove this technology can create a decisive military advantage on a timeline that matters,β explained Hermeus CEO and co-founder, AJ Piplica. βOur focus is on providing the Air Force and Navy with the validated data they need to transition these platforms into the future force.β
High Mach Payload Release: βA Game Changing Warfighting Capabilityβ
When announcing the new DIU award, Hermeus executives noted that the program will include a series of βintensive flight tests.β The first is expected later this year, while the final flights are expected sometime in 2027.
Although few specifics were provided, the company said the flights will βprove the aircraft can maintain high speeds and expand its performance limitsβ while also demonstrating the successful carry and release of payloads at high velocity. The company also noted that all flight data gathered during the development and testing phases βwill directly inform service experimentation and future acquisition decisions.β
In May, Hermeusβ Quarterhorse Mk 2.1 unmanned aircraft successfully completed its first supersonic flight, reaching a top speed of Mach 1.21. Image Credit: Hermeus.
Although the U.S. Military has several aircraft capable of exceeding the speed of sound, and several more hypersonic (exceeding five times the speed of sound) aircraft and missile prototypes, delivering payloads from high-Mach aircraft has remained a challenge. However, some military experts argue that the U.S. would benefit greatly from the capability.
When discussing the need for high-speed payload release, DIU Military Deputy Major General Joe βSoloβ Kunkel said that the largest problems the military is facing in the future are βgenerally around time and distance,β and the associated challenges with getting to distant locations βin a timeframe that matters.β
βI care about the warfighting capability, providing advantage to our partners and us in the fight, and making sure that we can walk into every fight with swagger,β General Kunkel said, adding that mass producing the technology developed by Hermeus could move it from a test platform to a βgame-changing warfighting capability.β
βI think we found a significant number of use cases where it can be used as a weapon,β the General added.Β
Moving High-Mach Capability Out of the Lab
When discussing the companyβs approach that convinced the DIU to offer its largest award in the organizationβs history, including what they describe as βreclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today,β Hermeus noted that directly partnering with the USAF and USN allows their engineers to align tests with future mission needs and shorten the path from testing to deployment.
βBy prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield,β the companyβs statement explained. βWe work with the Department of War toΒ provideΒ the high-speed capabilities our nation and its allies need toΒ maintainΒ a durable, asymmetric advantage.β
Image Credit: Hermeus.
When discussing the significance of the upcoming tests and the overall need for high-Mach flight payload deployment, including the benefit of the performance data, the company CEO heralded the DIUβs award, noting that the financing will help them move their successful demonstrations into real-world high-Mach platforms.
βThis program is about moving high-Mach capability out of the lab and into an operationally relevant environment,β Piplica said.Β
Christopher Plain is a Science Fiction and Fantasy novelist and Head Science Writer at The Debrief. Follow and connect with him on X, learn about his books at plainfiction.com, or email him directly at christopher@thedebrief.org.
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