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A spacecraft is a craft or machine designed for spaceflight. Spacecraft are used for a variety of purposes, including communications, earth observation, meteorology, navigation, planetary exploration and space tourism. Spacecraft and space travel are common themes in works of science fiction. On a sub-orbital spaceflight, a spacecraft enters space and then returns to the surface, without having gone into an orbit. For orbital spaceflights, spacecraft enter closed orbits around the Earth or around other celestial bodies. Spacecraft used for human spaceflight carry people on board as crew or passengers, while those used for robotic space missions operate either autonomously or telerobotically. Robotic spacecraft used to support scientific research are space probes. Robotic spacecraft that remain in orbit around a planetary body are artificial satellites. Only a handful of interstellar probes, such as Pioneer 10 and 11, Voyager, and New Horizons, are on trajectories that leave our Solar System. From Wikipedia under the
GNU Free Documentation License  spitzer.caltech.edu 480px x 640px | 108.00kB [source page] The completed spacecraft awaiting CTA integration at Lockheed Martin The assembled SpaceCraft Bus Lockheed Martin From Yahoo Image Search: "Spacecraft"  comspacewatch.com unknown ue, 23 Feb 2010 01:40:52 GM When the K and L satellites join the TDRS on-orbit constellation, they will provide critical voice, video, mission payload data, and health and safety data relay services to Earth-orbiting . spacecraft. . "The K-L series of . spacecraft. are ...  spacejobs.com unknown Fri, 26 Feb 2010 12:51:49 GM To support the client missions operations we are looking for . Spacecraft. Operations Engineers.  raeng.org.uk ue, 23 Feb 2010 00:00:00 GM "From . spacecraft. control to fast computer animation in games". Dr Alexandre Pechev, a Lecturer in Control Engineering from the Surrey Space Centre at the University of Surrey has received The Royal Academy of Engineering's ERA ... From Google Blog Search: "Spacecraft"  news.google.com PR Newswire (press release) The SDO satellite carries a single Aerojet 100 lbf bipropellant apogee engine that will move the spacecraft from the launch vehicle drop-off point to its ... NASA rocket, solar observatory reach orbit USA Today NASA launches spacecraft to study the sun Thaindian.com NASA launches observatory to study sun The Associated Press Xinhua - Denver Post - SatNews Publishers all 861 news articles » news.google.com Sun-Sentinel If Mr. Obama gets his way, NASA is expected to use its budget to encourage private companies to build, launch and operate their own spacecraft for NASA's ... Astronomy-based endeavors have more importance than is given in our society The BG News Space start-ups see dollar signs in Obama's NASA overhaul The Hill (blog) Space Race Cuts: Local Firms Wait San Fernando Valley Business Journal Space Ref (press release) all 55 news articles » news.google.com Spaceflight Now The spacecraft's operations have already been extended until September 2010 as part of the Cassini Equinox Mission. "This is a mission that never stops ... Cassini gets 7-year extension, new plan to crash into ringed planet Pasadena Star-News NASA Extends Cassini's Tour of Saturn, Continuing International Cooperation ... PR Newswire (press release) Cassini Saturn Probe Gets 7-Year Life Extension Space.com msnbc.com - Ethiopian Review - BBC News all 59 news articles » From Google News Search: "Spacecraft" What would you recommend for a design? "You must make a spacecraft that travels across a string the fastest."? Q. Okay, so the project is described as: There will be two poles with a string attached to each end. On the string, rather with it inside, is a straw. Design a 'spacecraft' that will travel the fastest across with the assistance of a fan. I tried a cone design but it didn't work out so well. Any suggestions? Asked by Them Crooked Vultures - Tue Jan 19 21:58:57 2010 - - 1 Answers - 0 Comments A. Well, depending on the coefficient of friction of the string, and whether or not the straw has a sharp edge to it (you know, like ALL straws have -- ever cut your tongue on a straw? I have), I think part of the problem is that the straw will keep getting hung up on the string. I think you need to add rotation to the design. That way, the forward momentum of the straw will be able to overcome the friction of the string more easily. So, instead of just a cone, how about a cone-shaped propeller? Also, you might want to lower the amount of friction between the string and the straw by using cooking spray (not a grease!) on the string. Really slick stuff. Make sure that it's allowed for your project, though, first; and test it, to make… [cont.] Answered by Mike R - Tue Jan 19 22:06:44 2010 What are the names of the two spacecraft? Q. Two spacecraft have now traveled into deep space beyond our solar system. What are their names? Thanks for your answers so far. Now, how far do these spacecraft have to be from earth before they can look back at our solar system and if possible, the milky way galaxy. Will they be able to send back pictures from such a distance? Asked by Bobo D - Sun Jul 13 10:49:57 2008 - - 4 Answers - 0 Comments A. Voyager 1 and Voyager 2 The Voyager program consists of a pair of unmanned scientific probes, Voyager 1 and Voyager 2. They were launched in 1977 to take advantage of a favorable planetary alignment of the late 1970s. Although they were officially designated to study just Jupiter and Saturn, the two probes were able to continue their mission into the outer solar system. They have since continued out and will one day exit the solar system. These probes were built at JPL and were funded by NASA. Both missions have gathered large amounts of data about the gas giants of the solar system, of which little was previously known. In addition, the spacecraft trajectories have been used to place limits on the existence of a hypothetical post-Plutoni [cont.] Answered by Movie Guy - Sun Jul 13 10:54:37 2008 Could the type of technology used in the LHC be adapted to accelerate spacecraft tp very high speeds?
Q. I know that LHC(Large Hadron Collider) accelerates particles to near light speed, but the other night I began to wonder if the same type of technology used in the LHC could also be used accelerate spacecraft/satelites to speeds greater than those that they can currently be accelerated to. Asked by bubbles - Sat Apr 25 15:46:00 2009 - - 3 Answers - 0 Comments A. A good thought, but unfortunately the answer is no, for two reasons: 1. The particle accelerator works because the particles have an electric charge and they're being sent through a very strong, confined magnetic field. The particles are sent around the circle multiple times, picking up speed each time (that's why they use a circle, BTW). You couldn't do the same thing with a spacecraft unless you could somehow electrically charge the spacecraft and then (somehow) continuously subject it to a strong magnetic field during its entire acceleration. 2. The LHC uses 200 million watts of power to accelerate only microscopically tiny bits of matter--each proton beam weighs less than a dust particle. To accelerate something the size of a… [cont.] Answered by RickB - Sat Apr 25 16:10:46 2009 From Yahoo Answer Search: "Spacecraft" |
