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    Pentagon awards Raytheon $45 million for GPS ground system as program future is reassessed

    Space News6 hours ago

    Pentagon awards Raytheon $45 million for GPS ground system as program future is reassessed

    WASHINGTON — The Pentagon awarded RTX a $45.3 million contract modification to support U.S. military GPS satellite ground operations, even as officials weigh scaling back the troubled Next Generation Operational

    Witness to history: Artemis II, lunar exploration and hope

    Astronomy Now6 hours ago

    Witness to history: Artemis II, lunar exploration and hope

    NASA’s Space Launch System lifts off from Launch Complex 39B at Kennedy Space Center, Florida, on 1 April 2026, carrying the Artemis II crew (Reid Wiseman, Victor Glover, Christina Koch

    Artemis II Astronauts Launch to Moon

    nasa6 hours ago

    Artemis II Astronauts Launch to Moon

    NASA/Aubrey Gemignani NASA’s Space Launch System rocket and Orion spacecraft lift off in this April 1, 2026, image. NASA’s Artemis II mission will take NASA astronauts Reid Wiseman, Victor Glover,

    The SPHEREx Instrument: Calibration, Testing And Performance Measurements Of The NIR 2 Spectroscopic Surveyor From The Laboratory To In-orbit Commissioning

    Astrobiology6 hours ago

    The SPHEREx Instrument: Calibration, Testing And Performance Measurements Of The NIR 2 Spectroscopic Surveyor From The Laboratory To In-orbit Commissioning

    Simultaneously collected raw spectral images in array coordinates from band 2 (left) and band 5 (right) collected during the first practice survey and the first crossing of the Galactic plane.

    Climate And Ocean Circulation Changes Toward A Modern Snowball Earth

    Astrobiology6 hours ago

    Climate And Ocean Circulation Changes Toward A Modern Snowball Earth

    (a) Annual mean sea ice concentration and sea ice thickness at the end of the simulations. Red lines in TSI100 indicate the presentday winter sea ice edge (Hirahara et al.,

    Desert/Water Planet Interaction: Sahara Dust Storm Over The Canary islands

    Astrobiology6 hours ago

    Desert/Water Planet Interaction: Sahara Dust Storm Over The Canary islands

    Sahara Dust Storm Over The Canary islands As seen by Sentinel-3 Modified Copernicus Sentinel data (2026), processed by ESA LICENCE CC BY-SA 3.0 IGO or ESA Standard Licence Earlier this

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