Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
				1      3 years ago, in 1950: The Soviet R-2, with twice the range of the R-1, makes its first flight.	2	3      11 years ago, in 1942: The first V-2 rocket is launched from Peenemunde, Germany, and reaches 85 km (52 mi).
4	5	6	7	8	9	10      107 years ago, in 1846: William Lassell discovers Neptune's largest moon, Triton.      5 years ago, in 1948: The R-1 (a Soviet built copy of the German V-2) makes its first successful flight.
11	12	13	14      6 years ago, in 1947: Charles "Chuck" Yeager breaks the sound barrier in the XS-1.	15	16	17      47 years ago, in 1906: 617 Patroclus, a Jupiter trojan asteroid, is discovered by German astronomer August Kopff at Heidelberg Observatory.
18	19	20	21	22	23      29 years ago, in 1924: 1036 Ganymed, the largest near-Earth asteroid, is discovered by Walter Baade.	24      102 years ago, in 1851: William Lassell discovers two moon of Uranus, Ariel and Umbriel.      7 years ago, in 1946: The first photo of Earth from space is taken by U.S. scientists with a V-2 rocket.
25      282 years ago, in 1671: Giovanni Cassini discovers one of Saturn's moons, Iapetus.	26	27	28	29	30	31      33 years ago, in 1920: 944 Hidalgo, the first member of the centaurs (though not realized as distinct until 1977) , is discovered by German astronomer Walter Baade.