: navigation by observation of the positions of celestial bodies
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At sea, celestial navigation, which came into its own in the late 1700s, requires algorithms to crunch the inputs from a sextant that allows mariners to determine their position on the surface of a sphere.—Scott Neuman, NPR, 11 June 2026 Relying on backup life-support systems on the Apollo Lunar Module meant to transport them to the moon's surface from orbit, the astronauts used primitive methods of celestial navigation to make their way back to Earth.—Eric Lagatta, USA Today, 7 Apr. 2026 Kamai trains in celestial navigation, using the stars, winds and waves to traverse the ocean without modern instruments.—Deepa Bharath, Los Angeles Times, 30 Mar. 2026 Kamai trains in celestial navigation, using the stars, winds and waves to traverse the ocean without modern instruments.—ABC News, 29 Mar. 2026 See All Example Sentences for celestial navigation