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Tag: optics
2 items with this tag.
Apr 22, 2026
Solar Gravitational Lens Telescope
gravitational-lensing
telescope
exoplanet-imaging
optics
interstellar
SETI
propulsion
Apr 18, 2026
Viking Navigation — Sunstones, Ravens, and the Physics of the Sky
navigation
Vikings
Norse
optics
polarized-light
sunstone
Uunartoq
North-Atlantic
maritime