WASHINGTON — The Space Development Agency on Feb. 23 announced a $30 million contract award to AST SpaceMobile to demonstrate its space-based broadband technology for military use. The firm-fixed-price award
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The abstract in PubMed or at the publisher’s site is linked when available and will open in a new window. Ebert D, Walton M, Byrne VE, Nelson AM, Sargsyan A.Autonomous
Mass-radius diagram of small exoplanets (with radii ranging from 1–4 R⊕) with precise densities from the PlanetS catalog. The red (gray) dots correspond to exoplanets orbiting M dwarfs (FGK dwarfs).
Scientists have built a working model of Earth without any life on it and what they found might change how we search for aliens. By simulating 4.5 billion years of
Left panel: schematic of an extraterrestrial transmitter on a planet (green) within the Exo-IPM, with Rimp indicating the impact distance of the passing line of sight between Earth and the
In this study, we aim to constrain the atmospheric composition of GJ 1214 b using all available transits observed with the upgraded CRIRES+ spectrograph at the VLT by searching for
Schematic image of three types of protoplanetary systems and their contribution to the radius-eccentricity profile and radius valley. — astro-ph.EP While recent planet-formation models broadly reproduce the observed population of
WASHINGTON — Redwire has introduced a new solar array product designed for mass-produced satellites that require high performance while minimizing mass. The company announced March 3 the Extensible Low-Profile Solar
2 min read Webinar 3/25: NASA CSDA Vendor Focus – Satellogic Satellogic satellite imagery of coastal Louisiana shows sediment plumes entering the Gulf of Mexico, illustrating how Earth observation data
A SpaceX Dragon cargo spacecraft, carrying more than 5,000 pounds of science, supplies, and hardware for NASA’s SpaceX CRS-33 mission, approaches the International Space Station on Aug. 25, 2025, for
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