Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
1	2	3      44 years ago, in 1915: The National Advisory Committee for Aeronautics (NACA) is formed.        This year: Pioneer 4 is launched for a lunar flyby, becomes the first U.S. probe to escape Earth's gravity.	4      284 years ago, in 1675: John Flamsteed is appointed as the first Astronomer Royal; The King's Astronomical Observator.        This year: Pioneer 4 flies by the Moon, but doesn't come close enough to the Moon to trigger its camera.	5      68 years ago, in 1891: 307 Nike, a minor planet in the asteroid belt, is discovered by Auguste Charlois at the Nice Observatory.       1 year ago, in 1958: Explorer 2 is launched, but a failure in the rocket's fourth stage prevents it from reaching orbit.	6      144 years ago, in 1815: Heinrich Wilhelm Olbers of Germany discovers a periodic comet, 13P/Olbers.        This year: Last contact is made with Pioneer 4.	7
8	9      101 years ago, in 1858: Friedrich August Theodor Winnecke 'rediscovers' comet 7P/Pons–Winnecke.      25 years ago, in 1934: Yuri Gagarin is born in Klushino, Russian SFSR, Soviet Union.	10	11	12	13      178 years ago, in 1781: William Herschel discovers the planet Uranus; first planet discovered through a telescope.	14      80 years ago, in 1879: Albert Einstein is born in Ulm, Kingdom of Württemberg, in the German Empire.
15	16      33 years ago, in 1926: Robert H. Goddard launches the first ever liquid fueled rocket.	17      107 years ago, in 1852: 16 Psyche, one of the ten most massive objects in the asteroid belt, is discovered by the Italian astronomer Annibale de Gasparis from Naples.      60 years ago, in 1899: Phoebe, a moon of Saturn, is the first moon to be discovered photographically (William Pickering).       1 year ago, in 1958: Vanguard 1, the first solar powered satellite, is launched and reaches orbit.	18	19	20      178 years ago, in 1781: M96 (NGC 3368), an intermediate spiral galaxy in the constellation Leo, is discovered by Pierre Méchain.	21      275 years ago, in 1684: Giovanni Cassini discovers one of Saturn's moons, Tethys.
22	23      119 years ago, in 1840: John William Draper takes the first successful photograph (Daguerreotype process) of the Moon.      17 years ago, in 1942: 5535 Annefrank, a minor planet in the inner asteroid belt, is discovered by German astronomer Karl Reinmuth at the Heidelberg Observatory.	24      178 years ago, in 1781: M105 (NGC 3379), an elliptical galaxy in the constellation Leo, is discovered by Pierre Méchain.	25      304 years ago, in 1655: Christiaan Huygens discovers Saturn's largest moon, Titan.      148 years ago, in 1811: The French astronomer Honore Flaugergues discovers the Great Comet of 1811 (C/1811 F1), visible to the naked eye for about 260 days.	26       1 year ago, in 1958: Explorer 3 is launched, and confirms the Van Allen Belts.	27	28      157 years ago, in 1802: Heinrich Wilhelm Olbers of Germany discovers the third largest asteroid, Pallas.
29      152 years ago, in 1807: Heinrich Wilhelm Olbers of Germany discovers the second largest asteroid, Vesta.      23 years ago, in 1936: Over 10,000 people watch the 200-inch mirror blank for the Hale Telescope passing by rail through Indianapolis.      14 years ago, in 1945: The last day of V-1 rocket bomb attacks on England occurs, only to be soon replaced by the V-2.	30	31