From: "Rodger Doxsey" <doxsey@stsci.edu> Subject: FW: There is pure tin in STIS electronics More re tin whiskers. ... Consequence: =========== IF the 20 A fuse was interrupted by a short circuit condition caused by a tin whisker (growing across the bus) in the STIS, then it is highly likely that the only residual effect is a blown 20 A fuse and a couple of arc-scuffs at each end of the (former) whisker. ... SEM examination found many examples of "proper tin whiskers" growing from the J-hooks. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Moon . ... Space Flight . ... On 31 January 1971, Alan B. Shepard Jr. was NASAв?Ts oldest and most senior astronaut- but also one of its least experienced. ... Similarly, at that time the Apollo program of lunar exploration was in trouble. ... Shepard signed up for the surgery.В By May 1969, Shepard convinced the very conservative flight surgeons of NASA that he was completely recovered and he began training to command Apollo 13. ... Astronotes . ...

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... Campbell, B.A., D.B. Campbell, G.A. Morgan, L.M. Carter, M.C. Nolan , and J.F. Chandler, Evidence for Crater Ejecta on Venus Tessera Terrain from Earth-Based Radar Images , Icarus 250, 123-130, 2015. ... Harmon, J.K. , M.C. Nolan , S.J. Ostro, and D.B. Campbell, Radar Studies of Comet Nuclei and Grain Comae , in Comets II , Univ. of Arizona Press, 265-279, 2004. ... Black, G.J., D.B. Campbell, and S.J. Ostro, Icy Galilean Satellites: 70 cm Radar Results from Arecibo , Icarus 151, 160-166, 2001. ...

... This is a personal project collecting and documenting early images of Harvard College Observatory, focusing on the site at Observatory Hill (previously Summer House Hill). ... This list of references is long in part because each web-based image source is viewed as a separate reference, even though half or more come from Harvard Libraries, through their Visual Information Access (VIA) . ... History of the Harvard College Observatory During the Period 1840-1890. 1890. baker90 . ... The Harvard Crimson...

... Home Articles A History of the First Forty Years of the Amateur Astronomers Association . ... Beyond New York City . ... A History of the First Forty Years of the Amateur Astronomers Association . ... At the 35th Anniversary Dinner of the Amateur Astronomers Association, I had been asked to give a talk on the history of our society. ... The Amateur Astronomers Association had a past even before it began. ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...