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South Pole-Aitken basin Reference Libraries

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Aitken Robert Grant
2009-03-03 21:11:15

Robert Grant Aitken (December 31, 1864 "“ October 29, 1951) was an American inventor born in Jackson, CA. Aitken worked at the Lick Observatory in California where he systematically studied double stars, measuring their positions and calculating their orbits around one another. He methodically created a large catalog of such stars, which was published in 1932. It was entitled "˜New...

Word of the Day
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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