Mars Global Surveyor is the oldest of five NASA robotic devices, which is designed to find out signs that Mars once had water; and it had been taking detailed pictures of the red planet for a decade. Unfortunately, it stopped working on November 2 after it developed a motor problem.
After two days of silence, ground control teams received a signal that the device had put itself into an emergency standby mode. There was no information about what had gone wrong. Since then, the mission team at NASA's laboratory in California has tried to contact the device. This week, NASA engineers are preparing for what may be their last chance to recover the spacecraft.
NASA plans to use a newly arrived device to take a picture of the Surveyor to see how the failed craft is oriented to the sun for power and to Earth for communications. It is reported that the picture will be taken on Friday when the satellites are about 93 miles apart. The new high-powered camera should be able to image details of the Surveyor as small as about 10 centimeters. There is a good chance of recovering it.
Flight controllers also plan to try to get the Surveyor to contact one or both of NASA's roving（漫游）geology stations, Spirit and Opportunity, which are located on opposite sides o. Mars'equator（赤道）.The rovers would not be able to transmit the spacecraft'5 science data, but engineers at least would get an idea of its general position. The linkup also could show if the Surveyor still has power. If the device has been unable to charge its batteries due to a positioning problem or failed component, it could run out of power with no hope of recovering. But if it has power, the device is quite capable of autonomous control even if it doesn't hear from Earth. The Surveyor has far surpassed its design lifetime, but scientists still have more targets for the probe's camera and science instruments.

Mars Global Surveyor is the oldest of five NASA robotic devices, which is designed to find out signs that Mars once had water; and it had been taking detailed pictures of the red planet for a decade. Unfortunately, it stopped working on November 2 after it developed a motor problem.
After two days of silence, ground control teams received a signal that the device had put itself into an emergency standby mode. There was no information about what had gone wrong. Since then, the mission team at NASA's laboratory in California has tried to contact the device. This week, NASA engineers are preparing for what may be their last chance to recover the spacecraft.
NASA plans to use a newly arrived device to take a picture of the Surveyor to see how the failed craft is oriented to the sun for power and to Earth for communications. It is reported that the picture will be taken on Friday when the satellites are about 93 miles apart. The new high-powered camera should be able to image details of the Surveyor as small as about 10 centimeters. There is a good chance of recovering it.
Flight controllers also plan to try to get the Surveyor to contact one or both of NASA's roving（漫游）geology stations, Spirit and Opportunity, which are located on opposite sides o. Mars'equator（赤道）.The rovers would not be able to transmit the spacecraft'5 science data, but engineers at least would get an idea of its general position. The linkup also could show if the Surveyor still has power. If the device has been unable to charge its batteries due to a positioning problem or failed component, it could run out of power with no hope of recovering. But if it has power, the device is quite capable of autonomous control even if it doesn't hear from Earth. The Surveyor has far surpassed its design lifetime, but scientists still have more targets for the probe's camera and science instruments.

Mars Global Surveyor is the oldest of five NASA robotic devices, which is designed to find out signs that Mars once had water; and it had been taking detailed pictures of the red planet for a decade. Unfortunately, it stopped working on November 2 after it developed a motor problem.
After two days of silence, ground control teams received a signal that the device had put itself into an emergency standby mode. There was no information about what had gone wrong. Since then, the mission team at NASA's laboratory in California has tried to contact the device. This week, NASA engineers are preparing for what may be their last chance to recover the spacecraft.
NASA plans to use a newly arrived device to take a picture of the Surveyor to see how the failed craft is oriented to the sun for power and to Earth for communications. It is reported that the picture will be taken on Friday when the satellites are about 93 miles apart. The new high-powered camera should be able to image details of the Surveyor as small as about 10 centimeters. There is a good chance of recovering it.
Flight controllers also plan to try to get the Surveyor to contact one or both of NASA's roving（漫游）geology stations, Spirit and Opportunity, which are located on opposite sides o. Mars'equator（赤道）.The rovers would not be able to transmit the spacecraft'5 science data, but engineers at least would get an idea of its general position. The linkup also could show if the Surveyor still has power. If the device has been unable to charge its batteries due to a positioning problem or failed component, it could run out of power with no hope of recovering. But if it has power, the device is quite capable of autonomous control even if it doesn't hear from Earth. The Surveyor has far surpassed its design lifetime, but scientists still have more targets for the probe's camera and science instruments.

Mars Global Surveyor is the oldest of five NASA robotic devices, which is designed to find out signs that Mars once had water; and it had been taking detailed pictures of the red planet for a decade. Unfortunately, it stopped working on November 2 after it developed a motor problem.
After two days of silence, ground control teams received a signal that the device had put itself into an emergency standby mode. There was no information about what had gone wrong. Since then, the mission team at NASA's laboratory in California has tried to contact the device. This week, NASA engineers are preparing for what may be their last chance to recover the spacecraft.
NASA plans to use a newly arrived device to take a picture of the Surveyor to see how the failed craft is oriented to the sun for power and to Earth for communications. It is reported that the picture will be taken on Friday when the satellites are about 93 miles apart. The new high-powered camera should be able to image details of the Surveyor as small as about 10 centimeters. There is a good chance of recovering it.
Flight controllers also plan to try to get the Surveyor to contact one or both of NASA's roving（漫游）geology stations, Spirit and Opportunity, which are located on opposite sides o. Mars'equator（赤道）.The rovers would not be able to transmit the spacecraft'5 science data, but engineers at least would get an idea of its general position. The linkup also could show if the Surveyor still has power. If the device has been unable to charge its batteries due to a positioning problem or failed component, it could run out of power with no hope of recovering. But if it has power, the device is quite capable of autonomous control even if it doesn't hear from Earth. The Surveyor has far surpassed its design lifetime, but scientists still have more targets for the probe's camera and science instruments.

Mars Global Surveyor is the oldest of five NASA robotic devices, which is designed to find out signs that Mars once had water; and it had been taking detailed pictures of the red planet for a decade. Unfortunately, it stopped working on November 2 after it developed a motor problem.
After two days of silence, ground control teams received a signal that the device had put itself into an emergency standby mode. There was no information about what had gone wrong. Since then, the mission team at NASA's laboratory in California has tried to contact the device. This week, NASA engineers are preparing for what may be their last chance to recover the spacecraft.
NASA plans to use a newly arrived device to take a picture of the Surveyor to see how the failed craft is oriented to the sun for power and to Earth for communications. It is reported that the picture will be taken on Friday when the satellites are about 93 miles apart. The new high-powered camera should be able to image details of the Surveyor as small as about 10 centimeters. There is a good chance of recovering it.
Flight controllers also plan to try to get the Surveyor to contact one or both of NASA's roving（漫游）geology stations, Spirit and Opportunity, which are located on opposite sides o. Mars'equator（赤道）.The rovers would not be able to transmit the spacecraft'5 science data, but engineers at least would get an idea of its general position. The linkup also could show if the Surveyor still has power. If the device has been unable to charge its batteries due to a positioning problem or failed component, it could run out of power with no hope of recovering. But if it has power, the device is quite capable of autonomous control even if it doesn't hear from Earth. The Surveyor has far surpassed its design lifetime, but scientists still have more targets for the probe's camera and science instruments.

Contrary to what many people believe, highly intelligent children are not necessarily bound to have an academic success. In fact, so-called gifted students may fail to do well because they are unusually smart. Ensuring that a gifted child reaches his or her potential requires an understanding of what can go wrong and how to satisfy the unusual learning requirements of extremely bright young people.
One common problem gifted kids face is that they, and those around them, place too much importance on being smart. Such an emphasis can breed a belief that bright people do not have to work hard to do well. Although smart kids may not need to work hard in the lower grades when the work is easy, they may struggle and perform poorly when the work gets harder because they do not make the effort to learn. In some cases, they may not know how to study, having never done it before. In others, they simply cannot accept the fact that some tasks require effort.
If the scholastic achievement of highly intelligent children remains below average for an extended period, many teachers will fail to recognize their potential. As a result, such students may not get the encouragement they need, and may further be depressed to learn. They may fall far behind in their schoolwork and even develop behavior problems. Boys may turn aggressive or become class clowns（小丑）.Girls often develop performance anxiety and other symptoms such as stomachaches.
One way to avoid such difficulties is to recognize that IQ is just one of the elements for success. Children do well or struggle in school for a host of reasons apart from IQ, according to psychologist Franz Monks of the University of Nijmegen in the Netherlands. These include motivation and persistence, social competence, and the support of family, educators and friends. Emphasizing the importance of persistence and hard work, for example, will help a child avoid the laziness trap. Gifted children also need intellectual challenges-to teach them how to work hard.