Scientists tackle one of the most challenging problems in physics--the interplay between quantum theory and gravity—from a different angle.

SAN ANTONIO — July 21, 2025 — NASA’s Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites (TRACERS) mission, a collaborative effort led by the University of Iowa (UI) with substantial contributions from Southwest Research Institute (SwRI), has entered its final integration phase. NASA is set to launch TRACERS’ two satellites into low Earth orbit on July 22nd from Vandenberg Space Force Base in California. The TRACERS mission will explore the dynamic interactions between the Sun’s and Earth’s magnetic fields.

The modulation of the surface structure of platinum-based single-atom alloys is crucial for improving the catalytic performance in propane dehydrogenation. The optimization of the surface structure of PtCu clusters was attained through regenerative treatment, which significantly improved the propylene yield and catalytic stability, thereby offering a viable strategy for the design of alloy catalysts applicable to various high-temperature dehydrogenation reactions.

SAN ANTONIO — July 21, 2025 — Southwest Research Institute (SwRI) scientists conducted lab experiments to address a mystery about the origins of frozen hydrogen peroxide (H₂O₂) on Jupiter’s icy moon Europa. Their results, published in the July 2025 issue of Planetary Science Journal, may help explain puzzling observations made by the James Webb Space Telescope (JWST).

NiMo-NiMoO_x with crystalline/amorphous heterointerface was fabricated by a facile electrodeposition method. Theoretical calculations and experimental results confirm that the introduction of Mo atoms can not only lower the energy barrier of water dissociation and optimize the capacity for hydrogen adsorption/desorption, but also modulate the ratio between crystalline and amorphous phases, increasing the heterostructure interfaces and enriching active sites. Thus, the NiMo-NiMoO_x electrocatalyst exhibits remarkable HER catalytic properties and durability. It requires a low overpotential of 30 mV at the current density of 10 mA cm^-2 in 1.0 M KOH, as well as a long-term stability with slight degradation after operating for over 80 h. Moreover, it also exhibits excellent activity and stability with negligible declination in the simulated alkaline seawater, making it highly promising for seawater electrolysis applications.