estados unidos elecciones

[AzetSar]

For a while, NASA considered abandoning the Hubble completely rather than invest in another repair mission. Ultimately the organization changed its course, and now it has scheduled another repair mission. We'll take a look at what exactly happened to the Hubble to necessitate repairs, why NASA almost decided to give up on the telescope and what the future has in store for this device. So what exactly is wrong with the Hubble? We'll focus on the problem in the next section. What Were NASA's Options? What's Wrong with the Hubble? Like all devices, the Hubble telescope is vulnerable to wear and tear. Sometimes a minor system fails, or a battery dies. At other times, a more critical system begins to wear out. Because the Hubble is both a telescope and a spacecraft, it has several complicated systems that could cripple the telescope's functionality if they failed. With that in mind, NASA has scheduled regular maintenance and repair missions to keep the Hubble in working order since its launch. The military figured that it would be easier, and less expensive, to accomplish these tasks in space than on the ground. At the time, a report by the American Institute of Aeronautics and Astronautics proposed that $1.8 million be spent to enhance the technology needed to develop a military spac­e station. They recommended the development of radiation protection, high-pressure suits for military astronauts, as well as shields and other defenses to protect against the laser attacks and nuclear bombs they anticipated would threaten the station. Not everyone in the government was onboard with the idea, though. Today, the International Space Station is fully operational, but for civilian, not military purposes. Though the Pentagon still looks to space, its interests lie more in protecting galactic assets from attack (especially by terrorists), rather than in launching military operations. To learn more about space stations, the Cold War and the space race, spy the links on the next page. On March 23, 1983, President Ronald Reagan gave a now famous speech outlining plans for a new, space-based missile defense system. He said the shield would protect the U.S. The Strategic Defense Initiative, or "," as it was nicknamed, would be equipped with computers, sensors, and weapons that could intercept enemy missiles. The plan was highly controversial -- and very expensive. Who won the Cold War? Did NASA win the space race? What is a remotely operated spy plane? Broad, William J. "Space Station is Studied by Military." The New York Times. Broad, William J. "Spy Satellites' Early Role as 'Floodlight' Coming Clear." The New York Times. Day, Dwayne A. "All along the watchtower." The Space Review. Karl, Jonathan. "So High, So Fast." ABC News. Minkel, JR. "Space Station Could Beam Secret Quantum Codes by 2014." Scientific American. Strom, Steven R. "The Best Laid Plans: A History of the Manned Orbiting Laboratory." Crosslink. The New York Times. Wright, David and Lisbeth Gronlund. Bulletin of the Atomic Scientists. elecciones eua

















































8553145 4310141 378783 7979428 8951654 4451264 6698696 2022996 3192162 4908089 925693 1136237 22484 2166637 6693800 7044706 3283333 8993204 3153960 9542951 9693602 5239993 8340617 247252 1997487 5444418 6588843 6512147 2934930 592778 6688886 9119625 8024359 3866511 22537 9805199 7603082 2736758 379868 7241403 1104876 2230423 9692418 2559033 9042911 6728464 6390800 8002801 675867 133499 5600046 4821145 7795950 6741344 2912331 8966327 7653886 7685225 5933154 5725110 442379 264520 336738 6845585 9336999 23992 9631737 6278791 3563205 7924800 383552 3110119 7429025 7443812 7070457 2784156 835991 8943072 3344850 216301 9192855 1168716 8864035 878681 3243002 2201734 3456865 8462041 1730656 4727109 2805635 205026 2416236 2944283 2394577 3471976 9379839 973813 8919332 9702304 7098219 5103716 893742 4294263 4250342 4718715 2652249 3528945 2736333 9248646 8495897 2138968 9865455 995352 6173000 7596053 4191809 6159344 1424141 9728045 7949527 8940524 7814237 6745685 1585582 6023716 8569667 1282479 8322538 1314961 9625961 2537403 9257700 3265427 5624626 3117688 1932664 9628354 3061815 1667527 7863599 6989741 7317969 4883849 7003492 4914332 2783924 5013320 9581699 7061501 7793165 1416722 8318113 4105348 8600716 7300995 6458993 5800836 9101129 5216732 9615639 2051963 5525509 7397543 1872392 5308782 7822804 9558530 9121271 9155377


site
site
site
site
site
site
site
site
site
site
site
site