Date: Sun, 15 Mar 2015 11:43:38 -0400 From: mark <whitroth at 5-cent.us> To: undisclosed-recipients:; Subject: [WSFA] 40 years and counting: the team behind =?UTF-8?B?Vm95YWdlcuKAmXMg? =?UTF-8?B?c3BhY2Ugb2R5c3NleQ==?= Reply-To: WSFA members <WSFAlist at KeithLynch.net> Excerpt: If the few people walking by on West Woodbury Road, Altadena, or popping into the landscaping place for some patio paving slabs were to peer into Howard\342\200\231s office, they might guess, seeing the graph-covered twin screens and a third PC at the other end of the desk, that he was, perhaps, a financial adviser or a day trader. But what Steve Howard is actually doing makes this very ordinary all-American scene quite extraordinary. Howard is a Nasa mission controller. He is sending instructions to a probe in interstellar space, 12 billion miles from Earth, beyond Pluto and escaping our Solar System at 1 million miles a day. The 815kg craft, Voyager 1, is one of two identical machines that for many years now have been the furthest human-made objects from Earth. Howard\342\200\231s computer code takes 17 hours at the speed of light to reach Voyager 1, the furthest travelled. Voyager 2, which is leaving the solar system in a different direction, is 3bn miles closer. The responses, from transmitters on the twin probes running 23 watts of power \342\200\223 have the power of a billionth of a billionth of a watt by the time they reach Earth. \342\200\234So here, see, I have Voyager 1\342\200\231s status and information up, at least as it was 17 hours ago,\342\200\235 Howard explains. --- end excerpt --- <http://www.theguardian.com/science/2015/mar/15/voyager-1-and-2-space-journey-nasa> mark