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... red to the naked eye from Earth, and the Hubble Space Telescope ( HUBBLE SPACE TELESCOPE HST ) data had indicated that Mars is red. The scientists reported that the detailed analysis using Pathfinder data had revealed that the HUBBLE SPACE TELESCOPE HST , not Pathfinder, needed to be recalibrated. March 1999 March April 1999 April Apr 1 1999 ...

... Systems Inc. of Park Forest, Illinois. NASA released new Hubble Space Telescope ( HUBBLE SPACE TELESCOPE HST ) images of the cores of spiral galaxies like the Milky Way, and astronomers studying the ... ," had discovered that such galaxies developed more recently. Both teams had used HUBBLE SPACE TELESCOPE HST 's visible-light and infrared cameras to determine the stars' true colors, a measure of ...

The Hubble Space Telescope ( HUBBLE SPACE TELESCOPE HST ) entered safe mode when the fourth of six gyroscopes failed, halting its astronomical observations. Requiring a minimum of three operating gyroscopes to conduct observations, HUBBLE SPACE TELESCOPE HST would remain in safe mode with a reduced power load, until Space Shuttle astronauts arrived ...

... , Steven L. Smith and John M. Grunsfeld successfully replaced all six of HUBBLE SPACE TELESCOPE HST 's gyroscopes and had "just enough time to equip each of the telescope's six ... .5-inch-tall (1.9-meter-tall) Smith, who had worked on HUBBLE SPACE TELESCOPE HST during its last service call in 1997, the task of replacing the two sets of ...

Astronauts Steven L. Smith and John M. Grunsfeld completed the HUBBLE SPACE TELESCOPE HST servicing mission, replacing a nonfunctioning radio transmitter and an outdated tape recorder. The spacewalk again ... spacewalk, preventing the astronauts from installing all six steel sunshades that protect HUBBLE SPACE TELESCOPE HST from solar damage. November 1999 November December 1999 December Dec 1 1999 1 Dec 2 ...

... Discovery astronauts placed the HUBBLE SPACE TELESCOPE HST back in orbit using the Shuttle's robotic arm. Astronaut Jean-Francois Clervoy operated the ... the telescope above the spacecraft, and ground controllers opened the door covering HUBBLE SPACE TELESCOPE HST 's telescopic eye. Once ground controllers gave the command, Discovery 's robotic arm released the ...

... suggested the opposite-that black holes were simply "born" big. Using the HUBBLE SPACE TELESCOPE HST , Gebhardt and Richstone had led a team of astronomers in determining the size of black ... , the scientific community greeted news of the discovery with great interest. The HUBBLE SPACE TELESCOPE HST had not only made the discovery possible but had provided the opportunity for scientists to ...

... overseen numerous successes for NASA, including the launch of Mars Pathfinder, the repair of the HST, and the redesign of the International Space Station ISS . Goldin stated that he was leaving ... -orbiting spacecraft and ground-based control and data-processing facilities. The TDRS satellites served the HST, the International Space Station ISS , and other NASA programs. Boeing had built TDRS-H under ...

Two separate teams of astronomers reported that NASA's Chandra X-ray Observatory and the HST had observed two stars, possibly composed of a form of matter unknown to scientists. Researchers examining data from Chandra and the HST had noted that the neutron star RX J1856.5-3754 was far smaller than expected ...

Using images from the HST, astronomers reported their analysis of a new class of objects in the solar system. The ... 2000 indicated that the object might contain two components. Further analysis, using ground-based and HST observations made in 2001 and 2002, confirmed 1998 WW3 1's binarity. (Christian Veillet, “The ...

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