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NASA’s Lunar Trailblazer Faces Power and Communication Challenges

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NASA’s Lunar Trailblazer, a small satellite designed to map water ice on the Moon, is facing significant technical challenges following its launch on February 26. The spacecraft, developed as part of a collaboration between NASA and Caltech, has lost contact with ground control and is experiencing power shortages. Prior to losing signal, engineering data indicated that the probe was slowly spinning in space, which has compromised its ability to generate enough power from its solar panels. Despite ongoing recovery efforts, no signal has been received in over a week.

NASA’s Jet Propulsion Laboratory (JPL) reported that ground-based radar data from March 2 suggests Lunar Trailblazer remains in a low-power state. Efforts to locate and reestablish communication with the spacecraft include utilizing NASA’s Deep Space Network and other observatories to track its position. The loss of contact has prevented the satellite from executing its post-launch trajectory correction maneuvers, which are crucial for reaching and maintaining a stable lunar orbit. Engineers are exploring alternative recovery strategies in hopes of salvaging the mission.

Lunar Trailblazer is part of NASA’s SIMPLEx (Small Innovative Missions for Planetary Exploration) program, which prioritizes cost-effective missions while accepting a higher level of operational risk. Built by Lockheed Martin, the 200-kilogram spacecraft was designed to detect and map lunar water ice by analyzing reflected light. Mission operations are managed by Caltech, with Lockheed Martin providing technical assistance. The first signs of trouble emerged shortly after deployment, when communication was initially lost on February 27. A brief signal was received later, but sustained contact has not been reestablished.

The ongoing difficulties with Lunar Trailblazer highlight the challenges of operating small satellites in deep space. While cost-effective, such missions can face significant risks, particularly when relying on limited power sources and autonomous systems. The situation remains uncertain, but recovery efforts continue in the hope of restoring communication and enabling the spacecraft to fulfill its mission objectives.

NASA’s X-59 Jet Undergoes Afterburner Test Ahead of Supersonic Flight Trials

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NASA’s X-59 supersonic jet, developed in collaboration with Lockheed Martin, has achieved a major milestone with the successful completion of afterburner engine tests. This aircraft is a key component of NASA’s Quesst program, which aims to revolutionize supersonic travel by significantly reducing the disruptive sonic booms that have long restricted such flights over populated areas. Conducted at Lockheed Martin’s Skunk Works facility in Palmdale, California, the tests showcased the X-59’s ability to meet supersonic performance benchmarks, bringing it closer to its first flight.

Performance Evaluation of Engine Systems

The X-59 is powered by the General Electric F414-GE-100 jet engine, a modified version of the one used in Boeing’s F/A-18 Super Hornet. NASA subjected the engine to rigorous afterburner trials to evaluate its performance under supersonic conditions. These tests assessed whether the engine could operate within safe temperature limits while maintaining sufficient airflow to sustain high-speed travel. Lockheed Martin shared images on X (formerly Twitter) highlighting the afterburner tests, which involved injecting fuel into the exhaust system to increase thrust. The trials also ensured compatibility between the engine and other onboard subsystems.

Flight Testing and Public Reaction Studies

With successful engine tests completed, the next phase for the X-59 involves ground testing and final flight preparations. Once ready, NASA will conduct a series of flight tests, during which F-15 aircraft equipped with specialized probes will analyze the shockwaves produced during supersonic travel. This data will be critical in validating the X-59’s quiet supersonic technology. Unlike traditional supersonic jets that produce loud sonic booms, the X-59 is designed to create a much softer “sonic thump.”

A Step Toward Commercial Supersonic Travel

NASA’s long-term goal is to use the X-59 to gather public response data by flying over select residential areas in the United States. Researchers will measure how people perceive the aircraft’s reduced sonic impact, providing crucial insights for regulatory agencies. If successful, this program could pave the way for future commercial supersonic flights over land, ultimately transforming air travel by significantly cutting flight times without the disruptive noise that has hindered supersonic aviation in the past.

ULA Plans Vulcan Rocket Upgrade to Compete with SpaceX’s Starship

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United Launch Alliance (ULA), the rocket venture between Boeing and Lockheed Martin, is planning an upgrade to its Vulcan rocket in a bid to compete with SpaceX’s Starship in the growing low Earth orbit (LEO) satellite launch market. According to ULA CEO Tory Bruno, the company aims to develop a version of the Vulcan rocket specifically designed to meet the demands of the LEO market, which has been largely dominated by SpaceX’s Starlink satellite deployments.

“We recently completed a major trade study for what we need to be competitive in the future LEO market,” Bruno told Reuters at a military space conference in Orlando. “We’ve selected a modification to Vulcan that gives us significantly more mass to LEO and puts us in a competitive range.”

The Vulcan rocket, powered by engines from Jeff Bezos’ Blue Origin, has already completed its first two launches this year. Initially designed for Pentagon missions, the Vulcan is now being reconfigured to cater to the commercial LEO satellite market. One potential upgrade is the “Vulcan Heavy,” a version with three core boosters for increased payload capacity. Bruno also mentioned other “unique” configurations, including propulsion placements in unconventional locations.

SpaceX’s Starship, which is primarily designed for crewed missions to the Moon and Mars, has turned its attention to accelerating its Starlink satellite launches into LEO. This has intensified competition for launch providers, as companies like Amazon also aim to deploy large satellite networks to challenge Starlink’s dominance. ULA aims to complete the Vulcan upgrade before SpaceX’s Starship becomes fully operational for LEO satellite launches, which Bruno suggests could take several years.

ULA has secured several Vulcan missions with Amazon, aimed at launching the company’s Kuiper satellite network. This makes the Vulcan an integral part of Amazon’s strategy to rival SpaceX’s Starlink. SpaceX has already conducted six test flights of Starship, demonstrating its commitment to testing and improving the rocket’s capabilities, while ULA plans to finalize the Vulcan design before launching it commercially.

In 2024, ULA is set to conduct eight Vulcan missions and 12 Atlas V missions, its predecessor. The Vulcan’s starting launch price is about $110 million, slightly above SpaceX’s Falcon 9, and ULA has a backlog of roughly 70 missions, including those for Amazon.

Although ULA has been considering a sale, drawing interest from companies such as Sierra Nevada Corp and Blue Origin, Bruno has declined to comment on any acquisition discussions.