2051

January

 * Roman Groom was accepted into NASA's astronaut programme at the age of 17. (TV: The Waters of Mars)

Unknown Dates

 * The black rhinoceros became extinct. (PROSE: The Last Dodo)
 * Steffi Ehrlich was married. (TV: The Waters of Mars)
 * Margaret Cain became the second British woman to walk on the Moon, after Adelaide Brooke. (TV: The Waters of Mars)