Smoke plumes from Chile wildfires seen by Sentinel-3

Published on January 20, 2026
This image, captured by Copernicus Sentinel-3 on 18 January 2026, shows clouds of smoke from wildfires on the coast of Chile. Image: This image, captured by Copernicus Sentinel-3 on 18 January 2026, shows clouds of smoke from wildfires on the coast of Chile.
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Free warnings, better catalogs: the real fix for space safety

January 20, 2026
A one-line change in the Dec. 18, 2025 Executive Order, Ensuring American Space Superiority, reopened a debate: should the United States charge satellite operators for basic space situational awareness (SSA) and civil space traffic coordination (STC) services? The order revised SPD-3 by removing the expectation that these services be provided “free of direct user fees,” […]The post Free warnings,

Webb reveals Helix Nebula in glistening detail

January 20, 2026
Image: Helix Nebula (NIRCam image)