NASA to Test Moon Landers in LEO

🚀 NASA reshapes Artemis III mission

🕳️ Black holes may reveal hidden physics

☢️ Military simulates nuclear detonation in orbit

⚛️ Fusion propulsion gets federal funding

🔴 Mars reveals more evidence of ancient water

NASA engineers have spent the months since February defining Artemis III as a crewed Earth-orbit test flight, focused on rendezvous and docking between Orion and commercial lunar landers from SpaceX and Blue Origin before any surface mission attempt.

The mission will fly to a 460 km circular low Earth orbit using a structural mass-simulator "spacer" instead of a propulsive upper stage, preserving the real ICPS for Artemis IV while letting Orion's European Service Module handle orbital insertion.

Mission planners say the four-person crew could physically enter at least one lander test article during the flight, with an upgraded Orion heat shield also slated for its debut, laying critical groundwork for the first crewed lunar landing on Artemis IV in 2028.

University of Cambridge researchers Richard Dyer and Christopher J. Moore developed a Bayesian statistical framework to systematically identify quasinormal modes, the gravitational wave "ringing" frequencies a merged black hole emits as it settles into its final stable state.

Their method, published in Physical Review Letters, cataloged these vibrational modes across computer simulations of black hole mergers and surfaced not just the dominant signal but also weaker overtones and nonlinear mode couplings previously too ambiguous to reliably extract from LIGO-Virgo data.

The work provides a systematic reference map for both theorists and observers, potentially sharpening tests of Einstein's general relativity in the most extreme gravitational environments accessible to science.

US Space Command organized "Apollo Insight" on March 23 at a Colorado Springs facility, gathering over 60 defense contractors, government agencies, and allied nations from Australia, Canada, New Zealand, and the UK for a classified tabletop exercise centered on a worst-case space nuclear detonation scenario.

The scenario was directly intelligence-driven: Russia's Cosmos 2553 satellite, launched in 2022 into an unusual high-radiation orbit, is assessed by US Space Command as a testbed for a nuclear anti-satellite weapon capable of disabling up to 80% of LEO satellites via electromagnetic pulse.

Apollo Insight is the first of four planned 2026 wargames and was specifically designed to pull commercial satellite operators into classified contingency planning, since the private sector owns the vast majority of what currently orbits Earth.

House Appropriations Committee markup language released May 13 includes a dedicated $5,000,000 line item for fusion propulsion technology, with the committee citing the technology's potential to enable crewed deep-space missions to Mars and beyond at timescales and costs unachievable with chemical propulsion.

The recommendation on page 99 of the spending bill represents the first time Congress has explicitly earmarked federal funds for fusion propulsion development, signaling a shift from treating the concept as speculative research to treating it as an emerging engineering program worthy of directed investment.

While modest in dollar terms, the earmark lands amid a broader push to accelerate Mars mission timelines, giving fusion propulsion advocates a congressional foothold to argue for substantially larger appropriations in future cycles.

ESA's Mars Express High Resolution Stereo Camera (HRSC) captured new imagery of Shalbatana Vallis, a 1,300 km equatorial outflow channel formed roughly 3.5 billion years ago when massive volumes of subsurface groundwater catastrophically breached the surface and carved their way downhill toward Chryse Planitia.

The images reveal a textbook collision of Martian geological forces: "chaotic terrain" of collapsed rock mesas formed by melting subsurface ice sits adjacent to volcanic wrinkle ridges created as lava cooled and contracted, alongside impact craters in varying states of burial and erosion.

Planetary scientists say the region functions as a compressed archive of Mars's ancient habitability window, preserving geologic evidence of water, volcanism, and impact history in a single frame that can inform models of when and where liquid water persisted on the surface.