Webb reveals Helix Nebula in glistening detail

Published on January 20, 2026
Helix Nebula (NIRCam image) Image: Helix Nebula (NIRCam image)
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Smoke plumes from Chile wildfires seen by Sentinel-3

January 20, 2026
Image: This image, captured by Copernicus Sentinel-3 on 18 January 2026, shows clouds of smoke from wildfires on the coast of Chile.

Satellites could use magnetic fields to avoid collisions

January 20, 2026
Two or more satellites could communicate and manoeuvre around one another using magnetic fields, although getting the technique to work at scale in space might be tricky