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Fred Whipple's first paper on meteoroid impacts on spacecraft, "Possible hazards to satellite vehicles from meteorites" is published by the RAND Corporation as a supplement to their May 2 1946 seminal study "Preliminary Design of an Experimental World-Circling Spaceship". Whipple would develop this into what became known as the Whipple Shield.

... metal as scrap. NASA said that it had to award a contract for demolition by February 18 or risk further delay in Shuttle schedules: the tower had to be removed by ... of times more massive than Earth's Sun. (NASA Release 83-21) January 1983 January February 1983 February Feb 1 1983 1 Feb 2 1983 2 Feb 3 1983 3 Feb 4 ... 25 1983 25 Feb 26 1983 26 Feb 27 1983 27 Feb 28 1983 28 March 1983 March

... Blackbird aircraft, reconnaissance planes being retired by the Air Force, were Scheduled to arrive in February at Edwards Air Force Base in California, for "flyable storage." NASA hoped to use the ... for both space travel and Earth uses alike. (NASA Release: 90-30a) January 1990 January February 1990 February Feb 1 1990 1 Feb 2 1990 2 Feb 3 1990 3 Feb 4 ... 25 1990 25 Feb 26 1990 26 Feb 27 1990 27 Feb 28 1990 28 March 1990 March

... /25/64, 300; A-N-AF &R, 2/29/64, 14)'' January 1964 January February 1964 February Feb 1 1964 1 Feb 2 1964 2 Feb 3 1964 3 Feb 4 1964 ... 26 1964 26 Feb 27 1964 27 Feb 28 1964 28 Feb 29 1964 29 March 1964 March

... of space competence with other types of applications satellites." ''(.5/ F, 2/68, 56-7)'' February 1968 February Feb 1 1968 1 Feb 2 1968 2 Feb 3 1968 3 Feb 4 ... 26 1968 26 Feb 27 1968 27 Feb 28 1968 28 Feb 29 1968 29 March 1968 March

... , 1965, 149)'' “Extraordinary Photograph Shows Earth Pole to Pole” article appears in National Geographic Magazine February 1965 February Feb 1 1965 1 Feb 2 1965 2 Feb 3 1965 3 Feb 4 ... 25 1965 25 Feb 26 1965 26 Feb 27 1965 27 Feb 28 1965 28 March 1965 March

... recovery alerts as in Mercury/Gemini experience. ''(S/A, 2/67, 52)'' January 1967 January February 1967 February Feb 1 1967 1 Feb 2 1967 2 Feb 3 1967 3 Feb 4 ... 25 1967 25 Feb 26 1967 26 Feb 27 1967 27 Feb 28 1967 28 March 1967 March

... “THE EARTH'S MOON: Map Supplement” articles appear in National Geographic Magazine January 1969 February 1969 February Feb 1 1969 1 Feb 2 1969 2 Feb 3 1969 3 Feb 4 1969 ... 25 1969 25 Feb 26 1969 26 Feb 27 1969 27 Feb 28 1969 28 March 1969 March

... No. 1 to contractor (NAA) for installation of final engine of 57,000-pound thrust. February 1961 February Feb 1 1961 1 Feb 2 1961 2 Feb 3 1961 3 Feb 4 ... 25 1961 25 Feb 26 1961 26 Feb 27 1961 27 Feb 28 1961 28 March 1961 March

... between the space policies of the two countries." '' (Sky and Telescope, 2/70, 76-9)'' February 1970 February Feb 1 1970 1 Feb 2 1970 2 Feb 3 1970 3 Feb 4 ... 25 1970 25 Feb 26 1970 26 Feb 27 1970 27 Feb 28 1970 28 March 1970 March

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