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5 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) Set to launch no earlier than Nov. 16, Sentinel-6B will continue the data record now being collected by its

6 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) Set to launch no earlier than Nov. 16, Sentinel-6B will continue a decades-long data record of sea level measurement

In this artist’s concept, the ocean-observing satellite Sentinel-6B orbits Earth with its deployable solar panels extended. Credit: NASA/JPL-Caltech NASA will provide live coverage of prelaunch and launch activities for Sentinel-6B,

NASA, ESA, CSA, STScI, CXC This image released on June 30, 2025, combines data from NASA’s James Webb Space Telescope and NASA’s Chandra X-ray Observatory to visualize dark matter. Researchers

Artistic rendering of the High-Rate Delay Tolerant Networking protocol being used on the Laser Communications Relay Demonstration to transfer radio and optical communications between Earth and space. Credit: NASA  NASA’s

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