25 October
1877: On 25 October 1877, Henry Norris Russell was born.Russell was an American astronomer and astrophysicist who showed the relationship between a star's brightness and its spectral type, in what ...
27 FEB. 2004
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1959: On 26 October 1959, the USSR released a photo of the far side of the Moon taken by the Lunik III probe. It was the first time anybody had seen the far side - disappointingly it looked much like the part of the Moon we had already seen.
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24 October
1851: On 24 October 1851, British astronomer William Lassell discovered Ariel and Umbriel, satellites of Uranus.Like most of the other Uranian moons Ariel is named after a Shakespearean character. The ...
23 October
1893: On 23 October 1893, Ernest Julius Öpik was born.Öpik was an Estonian astronomer best known for his studies of meteors and meteorites. His career was devoted to understanding the ...
22 October
1792: On 22 October 1792, Guillaume Le Gentil died.Le Gentil was a French astronomer who attempted to observe the transit of Venus across the Sun by travelling to India in ...
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