Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
	1	2	3	4	5      117 years ago, in 1843: The Great Comet of 1843 is first observed.	6
7	8	9      47 years ago, in 1913: Several hundred meteors are seen streaming across the sky from Saskatchewan to Bermuda.	10      26 years ago, in 1934: 4179 Toutatis is first sighted as object 1934 CT, but is lost soon after.	11      160 years ago, in 1800: While testing filters for observing the Sun, William Herschel discovers infrared radiation in sunlight.	12      13 years ago, in 1947: An approximately 100-ton meteorite explodes and impacts in the Sikhote-Alin Mountains, USSR.	13
14	15      396 years ago, in 1564: Galileo Galilei is born in Pisa, Duchy of Florence, Italy.      115 years ago, in 1845: The 72-inch Rosse (Leviathan of Parsonstown) Telescope sees "first light".	16      12 years ago, in 1948: Gerard Kuiper discovers one of Uranus' moons, Miranda.	17       1 year ago, in 1959: NASA launches the first weather satellite, Vanguard 2.	18      30 years ago, in 1930: Clyde W. Tombaugh discovers Pluto.	19      487 years ago, in 1473: Nicolaus Copernicus is born in Thorn, Royal Prussia, Kingdom of Poland.      173 years ago, in 1787: William Herschel's 40-foot (Great Forty-Foot) Telescope sees "first light".	20      13 years ago, in 1947: A U.S. launched V-2 rocket sends the first animals (fruit flies) into space, which are successfully recovered.
21	22	23	24      11 years ago, in 1949: A WAC Corporal with a V-2 first stage is flown at 5150 mph (8290 kph); first flight of over five times the speed of sound.	25	26      344 years ago, in 1616: Galileo Galilei is ordered by the Inquisition to abandon the Copernican theories.      177 years ago, in 1783: NGC 2360 (Caroline's Cluster), an open cluster in the constellation Canis Major, is discovered by Caroline Herschel.	27      117 years ago, in 1843: The Great Comet of 1843 makes a very close perihelion of less than 515,000 miles (830,000 km).      18 years ago, in 1942: James Stanley Hey accidentaly discovers radio emmissions coming from the Sun.
28      404 years ago, in 1556: The German astronomer Joachim Heller discovers the Great Comet of 1556 (C/1556 D1).       1 year ago, in 1959: Discoverer 1, a US Air Force reconnaissance satellite, is the first satellite launched toward the South Pole in an effort to enter polar orbit, but is unsuccessful.	29      456 years ago, in 1504: Christopher Columbus correctly predicts a total lunar eclipse and uses it to convince the natives of Jamaica to continue feeding his men.