A NASA Glenn overview describes wind tunnels, rigs and chambers used to study engine and airframe noise, from a low-speed tunnel modified in 2019 to a geodesic dome built in 1993 and a rig that first identified chevron nozzles in 1997.
ESA reports that the Copernicus Sentinel-3C satellite has been fixed to the top of the Vespa adapter, the upper position inside Vega-C's fairing, with the FLEX satellite below it.
Two Expedition 75 astronauts prepared for a pair of spacewalks to install roll-out solar arrays, while the crew also studied plant growth and breathing in microgravity.
A NASA Goddard team has built an airborne lidar prototype that steers laser pulses by wavelength rather than moving mirrors, producing continuous 3D swaths instead of isolated tracks. The instrument could eventually fly in space.
Using more than two decades of gravity measurements, NASA researchers identified 40 regions where changes in land water storage aligned with irrigation, reservoir filling and land-use change.
The ESA/Hubble Picture of the Month features the nebula LHA 120-N44, whose central superbubble spans roughly 210 by 140 light-years. A Hubble survey catalogued nearly half a million stars there, including nearly 30 000 that have not yet begun fusing hydrogen.
The last of ESA's four Cluster satellites, Tango, reentered Earth's atmosphere on 1 September 2026, ending a 26-year mission and completing a run of targeted reentries observed by an airborne science team.
NASA said it will fly three F-5 jets over the University of Alabama vs. Texas A&M football game on Oct. 24, with Administrator Jared Isaacman piloting one, as part of its Inspiration Tour.
NASA said Astrolab and Lunar Outpost are building crewed lunar terrain vehicles for delivery ahead of Artemis missions, while the VIPER rover is due to reach the Moon's South Pole in 2027.
The European Space Agency's Week in images for 31 August to 4 September 2026 gathers ten items, including FLEX and Sentinel-3C being sealed from view and the launch of the Roman mission to survey the infrared sky.
After eight years in space, ESA and JAXA's BepiColombo is arriving at Mercury, with the Mercury Transfer Module already separated and orbit insertion planned for 21 November 2026.
NASA teams at Stennis Space Center in Mississippi test-fired RS-25 engine No. 10001 on Oct. 21, 2026, running it for about 500 seconds at 111% power, the same duration engines fire during a Space Launch System launch.
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