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	Kids.Net.Au - Encyclopedia > Galileo probe
		The Galileo probe was an unmanned probe sent by NASA to study the planet Jupiter and its moons.
		The Galileo mission and systems were designed to investigate three broad aspects of the Jovian system: the planet's atmosphere, the satellites and the magnetosphere.
		Fortunately Galileo had an additional low-gain antenna that was capable of transmitting information back to Earth, but the low-gain antenna's bandwidth was significantly less than the high-gain antenna's would have been; the high-gain antenna was to have transmitted at 134 kilobits per second whereas the low-gain antenna's bandwidth was only 160 bits per second.
	www.kids.net.au /encyclopedia-wiki/ga/Galileo_probe (969 words)

	Galileo Probe Suggests Planetary Science Reappraisal
		Probe instruments found the entry region of Jupiter to be drier than anticipated, and they did not detect the three-tiered cloud structure that most researchers had postulated.
		At this location, the probe did not detect the three distinct layers of clouds (a topmost layer of ammonia crystals, a middle layer of ammonium hydrosulfide, and a final, thick layer of water and ice crystals) that researchers had anticipated.
		This suggests that Jupiter's winds are not caused by differential sunlight at the equator versus the poles or by heat released by water condensation as on Earth, according to project scientists.
	www.solarviews.com /eng/galpr3.htm (1211 words)

	Galileo probe (Site not responding. Last check: 2007-10-27)
		Galileo was an unmanned probe sent by NASA to study the planet Jupiter and its moonss.
		Once Galileo's primary mission was concluded, an extended mission followed starting on December 7 1997; the spacecraft made a number of daring close flybys of Jupiter's moons Europa and Io (closest approach was 112 miles on October 15, 2001).
		The probe was either melted and vaporized by the intense heat of an atmospheric "hot spot"; or, it was crushed by the atmospheric pressure.
	www.bopedia.com /en/wikipedia/g/ga/galileo_probe.html (1044 words)

	Galileo spacecraft - Wikipedia, the free encyclopedia
		Galileo was an unmanned spacecraft sent by NASA to study the planet Jupiter and its moons.
		Galileo's imager was panned downward during the exposure to separate the pulses, thus blurring earth's image on the right.
		Galileo's flight team then began a series of "annealing" sessions, where current was passed through the LEDs for hours at a time to heat them to a point where some of the crystalline lattice defects would be shifted back into place, thus increasing the LED's light output.
	en.wikipedia.org /wiki/Galileo_probe (4378 words)

	Galileo probe (Site not responding. Last check: 2007-10-27)
		The Galileo spacecraft conducted the 1st asteroid flyby, discovered the 1st asteroid moon, was the 1st Jupiter orbiter and launched the 1st probe into Jupiter's atmosphere.
		The probe was likely eventually crushed by the increasing extreme pressure of the atmosphere and then quickly melted and vaporized by the intense heat of the atmospheric "hot spot" it fell into.
		Since Galileo's high-gain antenna failed to open in 1991 the mission was forced to use the low-gain antenna for all communication to earth.
	www.sciencedaily.com /encyclopedia/galileo_probe (3134 words)

	AGU: Atmosphere of a Gas Giant Planet Directly Sampled for the First Time
		This near equatorial entry was dictated by the probe having to take advantage of the rotational velocity of the jovian atmosphere (which is greatest near the equator) in order to minimize the relative velocity between the atmosphere and probe during the high-speed entry.
		It was anticipated that the Galileo probe would encounter thick water ice clouds, and water would be an important constituent in the atmosphere as it is on Earth.
		One of the main objectives of the Galileo probe was to measure winds in the jovian atmosphere.
	www.agu.org /sci_soc/young.html (1479 words)

	detonate.net - Galileo Probe Nears Teh End! (Site not responding. Last check: 2007-10-27)
		Galileo could be allowed to simply remain in orbit, but scientists feared it might collide with Europa and contaminate that body with microbes from Earth, possibly damaging its environment.
		Galileo also was battered by the intense radiation found close to Jupiter.
		As Galileo approached Jupiter in 1994, it used its unique vantage point to photograph fragments of the comet Shoemaker-Levy 9 as they smashed into the atmosphere, producing brilliant flashes of light on the planet's far side that would have otherwise remained unseen.
	www.detonate.net /modules.php?name=News&file=print&sid=203 (674 words)

	USS Clueless - The end of Galileo
		Galileo was in an extremely eccentric elliptical orbit, such that it spent almost all of its time a long way to sunward and made a pass through the inner part of the Jovian system every couple of months.
		Galileo had rocket engines and carried a substantial amount of fuel, and by making small orbital corrections the mission controllers could within certain limits decide where it went and what it went past.
		As a result, a brute force calculation of the probe's vector as it emerges from the pass would have greater error leading to a greater error in its estimated position at perigee on the next pass, leading to even greater error in calculating the force, and so it goes.
	www.denbeste.nu /cd_log_entries/2003/09/TheendofGalileo.shtml (4765 words)

	Galileo Probe Release Status
		The probe release sequence was transmitted to the spacecraft on June 28.
		Galileo is scheduled to use its main engine in a large maneuver for the first time to aim the orbiter away from the probe trajectory and toward its own Jupiter approach path.
		The probe and orbiter continue to operate normally; telemetry indicates all subsystems are in good health, and all teams are reporting green lights for probe separation.
	www.jpl.nasa.gov /sl9/gll30.html (755 words)

	NASA - Surprising Jupiter Busy Galileo spacecraft showed jovian system is full of surprises.
		Galileo also determined that Jupiter's ring system is formed by dust kicked up as interplanetary meteoroids smash into the planet's four small inner moons.
		Galileo's own discovery of a likely ocean hidden under Europa's surface raises the possibility of life there and concern about protecting it.
		But Galileo Galilei, the first modern astronomer, would be immensely proud of the discoveries made by the spacecraft that carries his name.
	www.nasa.gov /vision/universe/solarsystem/galileo_end.html (845 words)

	Galileo Project
		The ultimate fate of the probe may be first determined by its battery lifetime or it may succumb to the immense pressure of Jupiter's atmosphere or ever increasing temperature.
		Galileo's two planned visits to the asteroid belt provided the first and second opportunities for close observation of these bodies: in October 1991 the spacecraft flew by asteroid Gaspra, obtaining the world's first close-up asteroid images; in August 1993, it flew by a second asteroid, Ida, and discovered the first confirmed asteroid moon.
		Galileo's orbital science results will be transmitted to Earth over the low-gain antenna at significantly lower data rates than originally planned, because of the in-flight failure of the high-gain antenna to deploy as commanded in April 1991.
	www.boeing.com /defense-space/space/bss/factsheets/galileo/galileo.html (1874 words)

	Galileo
		Galileo brauchte wie oben beschrieben eine Weiterentwicklung der IUS.
		Während der Primärmission lieferte Galileo 2.4 Gigabit an Daten, davon 1645 nutzbare Bilder (1924 gesamt).
		Galileo ist eine der klassischen großen Planetenmissionen, die heute von der NASA nicht mehr durchgeführt werden.
	www.bernd-leitenberger.de /galileo.shtml (9582 words)

	Galileo probe swoops past Jupiter's largest moon
		Galileo's Fields and Particles experiments are taking readings of the magnetic field around Ganymede, the only moon known to have its own.
		The flyby was Galileo's second-closest of the moon; the nearest took place in September 1996 at an altitude of 163 miles.
		Galileo was continuing to fly closer to Jupiter on Saturday and was facing another bout of the planet's strong radiation.
	www.chron.com /content/interactive/space/astronomy/news/2000/solarsys/20000520.html (359 words)

	The New Yorker: Fact (Site not responding. Last check: 2007-10-27)
		Galileo may be able to confirm the existence of a rocky ring close to the planet—a feature that has long been suspected.
		Galileo had been specifically designed for shuttle deployment; after the explosion of the space shuttle Challenger in January, 1986, a newly safety-conscious nasa had decided that the orbiter’s original, liquid-fuelled booster—which was more powerful but also potentially more dangerous than a solid-fuel device—couldn’t be lofted alongside the shuttle’s human cargo.
		Galileo’s handlers at the Jet Propulsion Laboratory realized that it would be necessary to store all the incoming images and other scientific data gathered by its instruments during its flybys of Jupiter’s moons.
	www.newyorker.com /fact/content?030908fa_fact (4460 words)

	Galileo
		Galileo was also the only vehicle in a position to obtain images of the far side of Jupiter when more than 20 fragments of Comet Shoemaker-Levy plunged into Jupiter's atmosphere in July 1994.
		The Galileo probe was released on 12 July 1995 and entered Jupiter's atmosphere on 7 December 1995.
		Galileo was destroyed to prevent the possibility that its orbit would eventually be perturbed in such a way that it would crash on and biologically contaminate Europa, which was considered a possible place to search for life.
	www.astronautix.com /craft/galileo.htm (1664 words)

	Galileo Project Information
		All of this was prior to the primary missions of sending an atmospheric probe into Jupiter's atmosphere and studying Jupiter, its satellites, and its magnetosphere for two years with the orbiter.
		The probe was released from the orbiter 147 days prior to its entry into the Jovian atmosphere on 7 December 1995.
		Although Galileo was not the first mission to explore Jupiter (actually, it is the sixth), it has established a number of "firsts" during its journey.
	nssdc.gsfc.nasa.gov /planetary/galileo.html (810 words)

	SPACE.com -- End Nears For Orbiting Galileo Probe
		Galileo could be allowed to simply remain in orbit, but scientists feared it might collide with Europa and contaminate that body with microbes from Earth, possibly damaging its environment.
		Galileo also was battered by the intense radiation found close to Jupiter.
		As Galileo approached Jupiter in 1994, it used its unique vantage point to photograph fragments of the comet Shoemaker-Levy 9 as they smashed into the atmosphere, producing brilliant flashes of light on the planet's far side that would have otherwise remained unseen.
	www.space.com /scienceastronomy/galileo_update_030210.html (844 words)

	Jupiter
		However, the preliminary results from the Galileo probe show only faint indications of clouds (one instrument seems to have detected the topmost layer while another may have seen the second).
		The data from the Galileo probe indicate that the winds are even faster than expected (more than 400 mph) and extend down into as far as the probe was able to observe; they may extend down thousands of kilometers into the interior.
		The Galileo spacecraft found clear evidence that the rings are continuously resupplied by dust formed by micrometeor impacts on the four inner moons, which are very energetic because of Jupiter's large gravitational field.
	www.nineplanets.org /jupiter.html (2199 words)

	Galileo probe returns to health (Site not responding. Last check: 2007-10-27)
		Galileo went into "safing mode" on January 31, four hours after zooming by Europa to try to determine if it has ice-spewing volcanoes, said David Senske, a member of the Galileo imaging team at NASA's Jet Propulsion Laboratory.
		After the approach, Galileo was turning to locate the sun so it could better position its antenna and beam data back to Earth, Senske said.
		Galileo was launched in 1989 and arrived at Jupiter on Dec. 7, 1995.
	www.anomalous-images.com /news/news360.html (213 words)

	:: NASA Quest > Archives :: (Site not responding. Last check: 2007-10-27)
		Galileo consists of two principal parts: an orbiter and an atmospheric probe.
		The probe was released from the orbiter 148 days before arrival at Jupiter and entered Jupiter's atmosphere to study the temperature, pressure and composition of the cloud layers and relay its data back to the orbiter.
		The Galileo probe arrived at Jupiter on December 7, 1995.
	quest.arc.nasa.gov /galileo/About/about-template.html (219 words)

	Spaceflight Now \| Breaking News \| Galileo probe makes closest flyby of a Jovian moon
		Galileo's camera appeared to be working well from the time it was given a command Thursday afternoon to turn off then back on, right through and after the spacecraft's closest approach to Callisto at 7:24 a.m.
		Galileo's closest approach to Jupiter on this orbit was at a distance of about 460,000 kilometers (about 285,000 miles) from the giant planet's cloud tops on May 23.
		Galileo, built at JPL, has already received more than three times the cumulative radiation exposure it was designed to withstand and has continued making valuable scientific observations more than three years after its original two-year mission in orbit around Jupiter.
	spaceflightnow.com /news/n0105/26galileo (870 words)

	Solar System Exploration: Galileo Legacy Site (Site not responding. Last check: 2007-10-27)
		Galileo plunged into Jupiter's crushing atmosphere on Sept. 21, 2003.
		The spacecraft was the first to fly past an asteroid and the first to discover a moon of an asteroid.
		Galileo was the first to measure Jupiter's atmosphere with a descent probe and the first to conduct long-term observations of the Jovian system from orbit.
	galileo.jpl.nasa.gov /mission/journey-probe.cfm (158 words)

	Andrew P. Ingersoll (Site not responding. Last check: 2007-10-27)
		Galileo multispectral imaging of the north polar and eastern limb regions of the Moon.
		Interpretation of Galileo probe data and implications for Jupiter's dry downdrafts.
		Shear instabilities as a probe of Jupiter’s atmosphere.
	www.gps.caltech.edu /faculty/ingersoll (3641 words)

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