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by Lori Stiles, Univ.of Arizonia News
New images of Jupiter's volcanically active moon, Io, mirror volcanic processes on Earth eons ago, scientists say. The public will first see these new images Friday, Nov. 19, when scientists on the Galileo spacecraft imaging team discuss them during a NASA-televised Space Science Update in Washington, D.C. at 1 p.m. EST (11 a.m. MST). Alfred S. McEwen, associate research scientist at the University of Arizona Lunar and Planetary Laboratory (LPL) and Galileo imaging team member, is one of four scientists featured at the news briefing. LPL students and researchers in Tucson who also worked on these Galileo images invite news media to Room 429 in the UA Kuiper Space Sciences Building from 1 to 4 p.m. on Friday to view and hear more about the pictures. They'll have hard copies of the photographs on hand. Reporters can come early and watch the 11 a.m. NASA Space Science Update broadcast, "Volcanic Moon Io Mirrors Earth's Past," in Kuiper Space Sciences.
The new images from Io were acquired by NASA's Galileo spacecraft on Oct.10, 1999, during a close flyby of Io. Getting close to Io is dangerous because of the intense radiation belts near Jupiter. Despite having accumulated more than 200 times the radiation needed to kill a person, the 10-year-old Galileo spacecraft has survived to tell a spectacular story, the LPL researchers say. These images from Io provide humankind with the first ever close-up pictures of processes that have not existed elsewhere in the solar system for millions or even billions of years, they add. This includes eruptions of ultra-hot lavas, advancing gigantic lava flows, and disintegrating mountains. These new observations provide vital clues about the early history of the Earth, the moon, Mars and Venus. They also help planetary scientists understand the effects on the climate of colossal volcanic eruption in Earth's past.
By Andrew Bridges
An investigation panel will present its report on the loss of the Mars Climate Orbiter during a briefing Wednesday at NASA headquarters. The report on the loss of the $125 million spacecraft will likely be a sharp rebuke to NASA's Jet Propulsion Laboratory just as it rushes to finalize efforts to successfully land a companion mission, the Polar Lander, on Mars on December 3. Preliminary findings into the loss of the mission indicate that NASA engineers mistook measurements supplied by Lockheed Martin Astronautics in English units for metric units.
The discrepancy resulted in a trajectory that either slammed the spacecraft into the surface of Mars or put it into orbit around the sun. However, the report is expected to delve into not just the error itself, but its root causes and how similar errors can be avoided with the Mars Polar Lander, now just weeks away from its scheduled touchdown near the planet's south pole. JPL manages -- or managed -- both projects, whose mission teams largely overlapped. "There are things that went wrong - I'm sure the stories on that will come out that will have implications both technically and managerially," said Louis Friedman, executive director of The Planetary Society, a Pasadena, California-based space exploration advocacy group. "But right now everyone is focused on Mars Polar Lander."
As for the cause of the failure, the scuttlebutt this week at JPL is that members of the navigational team routinely fudged readings in the spacecraft's position attributable to various small forces as it made its way to Mars from Earth. The tiny adjustments to those errors gradually built up over months, eventually putting the spacecraft an estimated 60 miles (96 kilometers) too close to Mars, dooming it. "They kept adjusting it, adjusting it, adjusting it, so it got to the point they took out all the error," said one JPL insider. "If someone had looked more closely at it, they could have caught it."
(NASA) Last night Earth was hit by a high-pressure solar wind stream. It's expected to persist for 3 or 4 more days producing a 50% chance of mid-latitude aurora. But the big news today is the 1999 Leonid meteor shower. Experts are predicting a big storm on November 18th with up to 100,000 shooting stars per hour. Of course, we could be off by a couple of years. The storm might hit in 2001 instead. Or maybe not at all! Hey, if predicting these things were easy we wouldn't need experts!"
Most experts would agree that predicting the Leonids can be tricky. To understand why it's helpful to know the difference between a "meteor shower" and a "meteor storm." Simply put, meteor showers are small and meteor storms are big. Meteor showers produce a few to a few hundred shooting stars per hour. Meteor storms produce a few thousand to a few hundred thousand meteors per hour. A meteor storm, like a total solar eclipse, ranks as one of Nature's rarest and most beautiful wonders.
PASADENA, California (CNN) -- With exactly six weeks to go before their diminutive sensor, shovel and shutter-packed science probe is due to arrive on the surface of Mars, the scientists in charge of the Mars Polar Lander mission are huddling to decide precisely where to land.
High-resolution images captured by Mars Orbiter Camera on board the Mars Global Surveyor spacecraft have prompted some worry about the terrain at the primary site near the Martian South Pole.
"At first we thought this was really sort of rolling areas, with pretty gentle slopes," says Mars Polar Lander Project Scientist Richard Zurek. "Now it is clear at least parts of the area that we may end up on are a little rougher than what we expected."
Zurek and his team chose a primary and backup landing site based on images captured by a Viking orbiter some 20 years ago. The camera on that spacecraft was only able to see images the size of a football field or larger. And at that resolution, the landing zone looks like a perfect welcome mat for the 12-foot-wide Lander that stands only 3 and a half feet tall.
(CNN) -- Atmospheric features of the planet Neptune, including a cloud mass the size of Europe, are revealed in images of the planet taken by a new infrared camera on Palomar Observatory's Hale telescope. The Neptune images represent the first attempt to conduct science with the Palomar High Angular Resolution Observer (PHARO), a camera built by Cornell researchers and NASA's Jet Propulsion Laboratory.
Previously, it has been impossible for terrestrial observations to detect fine detail on Neptune because of atmospheric disturbance and the planet's great distance from the earth. But the new camera employs an "adaptive" optics system that corrects the turbulence to produce images with a degree of detail approaching the theoretical limits of the Hale telescope, Cornell researchers said in a statement. The system employs a mirror that is adjusted up to 500 times per second to correct atmospheric distortions.
The images show clearly defined clouds over the planet. Data obtained by PHARO's spectrometer will enable astronomers to do a detailed analysis of the clouds' composition and altitude and to measure the abundance of methane in Neptune's atmosphere, Cornell researchers said.
(CNN) -- A spacecraft that will study one of astronomy's greatest mysteries and another that will search for new planets outside our solar system have been selected as the next missions in NASA's medium-class Explorer (MIDEX) program, the space agency announced Thursday. Both of the missions -- relatively modest ones, by NASA standards -- will launch early in the next millennium. "The number of first-class concepts being submitted to NASA by the space science community for these smaller missions just keeps on climbing," said Ed Weiler, an administrator at NASA Headquarters in Washington, in a written statement. Scientists plan to match up observations from three space telescopes as part of the three-year $163 million Swift Gamma Ray Burst Explorer mission, which will observe the largest explosions in the universe. Launch is set for 2003. Scientists hope to learn more about unpredictable gamma ray bursts by simultaneously pointing a gamma-ray telescope, X-ray telescope and ultraviolet and optical telescope within minutes of a burst's first appearance.
(NASA) The controlled crash of NASA's Lunar Prospector spacecraft into a crater near the south pole of the Moon on July 31 produced no observable signature of water, according to scientists digging through data from Earth- based observatories and spacecraft such as the Hubble Space Telescope. This lack of physical evidence leaves open the question of whether ancient cometary impacts delivered ice that remains buried in permanently shadowed regions of the Moon, as suggested by the large amounts of hydrogen measured indirectly from lunar orbit by Lunar Prospector during its main mapping mission.
A while back I came across a very interesting NASA lunar image that was not available from public sources. It's an image scanned at 1200 dpi from the personal archives of a former NASA scientists who has since passed away.
Upon studying it closely, I noticed an odd shaped object in the Lunar sky, high up on the horizon. I also, noticed the movement of small space-craft across the Lunar surface travelling towards this large odd-shaped object.
As time went by a name for this object was coined...Spudnik.
This is not a gag Mitch. I've been working on this for quite a while now. The data all ties together quite nicely...There is definitely something orbiting our Moon. And according to ancient lore, it's been orbiting the Moon for a very long time.
Please take the time to visit this link:
http://www.kksamurai.com/moon/ufo-moon.html
If you work your way through the first six pages starting with "The SAGA begins", you'll soon see that there is a ton of corroborating evidence in support of this strange object. Far more than my work alone, there is support from other sources. We also see work from an amateur astronomer in Amsterdam, also, an amateur astronomer in New South Wales, also, Lunascan, and other strange visual confirmations.
Our Moon lives Mitch!!!
LOS ANGELES (AP) - NASA's aging Galileo spacecraft flew within 380 miles of Jupiter's moon Io, exposing the craft to so much radiation that mission controllers feared the probe might not survive. No problems were reported, however, after the closest-ever flyby of Jupiter's innermost large moon took place Sunday at 10:06 p.m. PT, said project manager Jim Erickson of NASA's Jet Propulsion Laboratory in Pasadena. "Everything is looking pretty good," he said. "None of the normal things that would have indicated problems have shown up."
The Hubble Space Telescope is giving astronomers new clues about the birth of spiral galaxies like our own. One team of astronomers studying pictures from Hubble said Wednesday they had confirmed that the central bulges of the more tightly wound spirals were all created at more or less the same time in the early universe. See More: http://cnn.com/TECH/space/9910/06/hubble.pictures/index.html
WASHINGTON (AP) - The millions of stars bulging out amid the massive spiral galaxies whirling through space are beginning to reveal some details of how these star groups formed, NASA reported Wednesday. The central bulges of the more tightly wound spiral galaxies formed early in the life of the universe, according to a team led by Reynier Peletier of the University of Nottingham in England. A second team concluded that galaxies with small bulges and long bars or lines of stars that bisect the nucleus grew more recently and through different processes. The researchers say the central bulge stabilizes a galaxy's development and largely controls the ebb and flow of star birth in the core.
BY Seth Borenstein Mercury News Washington Bureau
WASHINGTON -- Astronomers worldwide are tracking down a mysterious and unusual burst of energy that exploded like a flash bulb in the sky last week, lingered several hours and disappeared. The sudden flash turned a star too dim to see except with a good telescope into one almost visible to the naked eye. But the outburst really wowed astronomers in invisible wavelengths -- X-ray, gamma ray and radio -- where it flashed more than 120 times stronger than normal, to become briefly the brightest thing in the sky. Messages flashed through cyberspace as astronomers buzzed about something very peculiar going on. ``It's become a kind of global detective story,'' said American University astronomer Richard Berendzen
(CNN) -- NASA's newest space telescope has snapped detailed pictures of the remnants of three stellar explosions, presenting mysteries about their odd shapes and the power-generating neutron stars thought to be at the center of two of them. Two of the remnants imaged this month by the Chandra X-ray Observatory seem to have rapidly rotating neutron stars at their center that spit out high-energy particles. All three are surrounded by oddly shaped shells or clouds of highly charged gas. "It's a thrill to see them," said Fred Seward of the Harvard-Smithsonian Center for Astrophysics in Massachusetts. Seward and his colleagues discovered X-rays emitted from two of the three supernova remnants with the Chandra's predecessor, NASA's Einstein Observatory, over a decade ago. "We're seeing more detail and features we haven't seen before," he said. One of remnants, called E0102-72 and found in the Small Magellanic Cloud -- a satellite galaxy of our Milky Way, resembles a flaming cosmic wheel and stretches across 40 light years of space. A light year is the distance it takes light to travel in a year -- about 6 trillion miles. The Small Magellanic Cloud is 190,000 light years from Earth. Like the other two remnants, E0102-72 resulted from the explosion of a massive star several thousand years ago. Astronauts aboard the space shuttle released the $1.2 billion Chandra space telescope into orbit in July.
By Lori Stiles, University of Arizona News Services
Scientists are delighted with photos of Earth's moon snapped by cameras aboard the Cassini spacecraft during its recent Earth flyby. This was the first real space test of Cassini¹s imaging system. The test was conducted Aug.18 (GMT), when Cassini flew more than 700 miles over the Pacific Ocean, while getting a slingshot-like power boost from Earth's gravity field for the next leg of the long trip to Saturn.
Cassini images and brief video clips are being released today on the Internet at http://ciclops.lpl.arizona.edu, the official web site of the Cassini Imaging Science Team, and at http://photojournal.jpl.nasa.gov. CICLOPS, the Cassini Imaging Central Laboratory for Operations, is the hub of imaging team operations and is located in the Lunar and Planetary Laboratory at the University of Arizona in Tucson.
CICLOPS houses the Cassini Imaging Diary, the collection of released images that will document Cassini's travels over the next decade as it makes its way by Jupiter and into Saturn orbit for its four-year tour of the Saturn system.
"These are the first images taken by Cassini for both photogenic and scientific purposes, and they illustrate that the cameras are functioning beautifully" said Carolyn C. Porco, leader of the 14-member Cassini Imaging Science Team (ISS). "The cameras promise a bonanza of imaging delights at Jupiter in late 2000 and at Saturn beginning in the year 2004," she added. Porco is associate professor of planetary sciences at the University of Arizona in Tucson.
The images released today are a wide-angle movie, a narrow-angle video clip, the moon in ultraviolet and "triptych" of the moon. They were taken from a distance of about 234,000 miles about 80 minutes prior to Cassini¹s closest approach to Earth.
The wide-angle movie is a brief movie taken with the ISS wide-angle camera as the Cassini spacecraft glided by the moon. The narrow-angle video is a 3-frame clip made from the highest resolution images taken as the moon passed through the narrow-angle field of view. The moon in ultraviolet is one of the best, highest resolution frames taken at ultraviolet wavelengths during Cassini¹s closest approach to the moon. The "triptych" of the moon is a composite image made from the three narrow-angle Cassini images included in the video clip.
WASHINGTON (AP) - NASA scientists have detected what they say may be the first actual evidence of matter falling into a black hole in space. Using the Advanced Satellite for Cosmology and Astrophysics, Paul Nandra and colleagues at Goddard Space Flight Center in Greenbelt, Md., observed the emission of X-rays from iron atoms in the gas swirling around a central, dense object. Along with the X-rays was a rare light emission from iron atoms traveling away from the viewer at 6.5 million miles per hour, possibly a mark of material being drawn into a black hole, Nandra reported in an upcoming edition of Astrophysical Journal Letters. This differs from the previously observed phenomena regarding black holes.
(CNN) Just nine days after scrapping one comet exploration mission over cost concerns, NASA announced a similar mission with the same price tag -- $240 million -- to exactly the same comet. The new mission, Deep Impact, aims to crash a 1,100 pound copper spacecraft into Comet Tempel 1 in 2005, creating a crater as big as a football field and as deep as a seven-story building. The earlier mission, Champollion or Deep Space 4, was to land a small spacecraft there in 2005.
WASHINGTON (AP) - Particles streaming out from the sun catch a magnetic wave and surf across the solar system at almost two million miles an hour, a speed twice as fast as experts had predicted, according to new measurements from satellites. The high speed flow from the sun, called the solar wind, has been a mystery to scientists for 37 years because they expected the particles to poke along at a mere one million miles an hour. New measurements by two science satellites have solved the puzzle, researchers said Thursday, by showing that the solar wind's speed is boosted by magnetic waves that spiral out from the sun.
"Robert A.M. Stephens" wrote:
This is rendition/photo-realistic image number 31 of 68 completed for various vendors on the X-60 class vehicles. This work was accepted and I just got it back via hardcopy. I scanned it back in and here it is for your purview as another rendition of this strange craft.
Of note; the primary motor nacelles are null (not running or firing) while entrainment is accomplished at low forward =VTOL speeds with only the secondary RCS (RCS=Reaction Control System) engaged. This would mean the vehicle is in slow reconn mode and is 'drifting' while entrained to show off its VTOL and near VTOL capability. Too, this vehicle and others in its class are SRC (Silent Running Capable) which I'm not completely sure of for definition since SRC craft has been a major goal of DoD and other branches of aerospace for some years. How vectoring is accomplished for SRC is still an enigma outside of black RD development schedules.
The vehicle is 68 meters in length. The image portrays X-60c4 at a distance of approximately 250 meters from the imaginary viewer index spot which is dead bottom center of the image.
More images forthcoming per X-60 class entrained vehicles and air bodies.
---------------
sincerely,
Robert A.M.Stephens
NASA Documentation Program
Stillwater Mills-Aerospace
KSC-PIB/shuttle/MSF
406-745-3818 406-745-0001
still46@stignatius.net
http://www.nasa.gov/siteindex.html
Dissent is my Business Business is Good
------------------------------------------------------------------------
CNN - Boston University astronomers on Monday announced the discovery of a new feature of the Earth's moon -- a sodium-gas "tail" that stretches at least a half-million miles. The observation was made by chance in November when a Boston University team pointed a sensitive camera in the opposite direction from the moon, attempting to photograph the Leonid meteor storm.Instead, they recorded a patch of sodium emission in an otherwise moonless sky.
CHICAGO (AP) - One of the most famous stars in the southern night sky, Eta Carinae, has suddenly doubled in brightness. Astronomers call the behavior puzzling but suspect the star may be undergoing a massive eruption, much as it did more than 150 years ago. Amateur and professional astronomers throughout the Southern Hemisphere have noticed that Eta Carinae is becoming more luminous. Instruments focused on the star suggest its energy output has doubled or tripled in the last year and a half. What puzzles astronomers is that Eta Carinae was not supposed to do this. Eta Carinae was a routine part of the sky in the Southern Hemisphere until the 1840s when it suddenly erupted with a massive outflow of energy, dust and gas.
CHICAGO (AP) - A new radio-telescope technique has established a "golden ruler" for measuring cosmic distances and raises doubts about the claim last week that NASA astronomers had determined the age and expansion rate of the universe. Jim Herrnstein of the National Radio Astronomy Observatory said his method produces "the most precise distance ever measured to a remote galaxy" and suggests a 15% to 20% margin of error in the technique used by the astronomers sponsored by the National Aeronautics and Space Administration. "Ours is a direct measurement, using geometry, and is independent of all other methods of determining cosmic distances," Herrnstein said Tuesday at a national meeting of the American Astronomical Society.
CHICAGO (AP) - It may seem like the sun is just creeping through the heavens, but a new technique for measuring cosmic motion has found that sol is clipping along at an eye-popping 135 miles per second in its orbit of the Milky Way. Astronomers using a radio telescope system to make the most precise measurement ever of the solar system orbit found that it takes the sun and its family of planets 226 million years to circle the center of its home galaxy. That means that the last time the sun was at this point in its orbit of the Milky Way, dinosaurs ruled the world and human beings were not yet on the scene.
CHICAGO (CNN) -- A stunning new picture taken with the Hubble Space Telescope shows a unique region in our own Milky Way Galaxy where all stages of star birth and evolution are present at once.
The image shows a giant galactic nebula, or cloud of gas, called NCG 3603. Within the nebula, a blue supergiant star called Sher 25 is surrounded by a ring of glowing gas that astronomers believe is made up of chemically enriched material that, over time, feeds the formation of new stars.
Nearby Sher 25, is a dense, bluish-white knot of material that scientists say is a so-called starburst cluster, consisting of hot, young stars.
Surrounding Sher 25 and the starburst cluster are giant pillars of gas that form when radiation from stars interacts with cold hydrogen clouds in deep space.
Small, dark clouds in the upper right corner of the image are Bok globules, which are very early structures of star formation. And, in the lower left of the image, astronomers have identified two tadpole-shaped "emission nebulae," which are thought to be gas and dust from protoplanetary disks. Eventually, solar systems could form from these structures.
The image is a true-color picture, and was taken on March 5, 1999, using an instrument aboard Hubble called the Wide Field Planetary Camera 2. It was released at a meeting of the American Astronomical Society in Chicago.
WASHINGTON (AP) - A global study of Mars shows the red planet is shaped like a pear, with towering volcanic mountains in the south, and a smooth lowland in the north that may once have been an ocean. A three-dimensional map of Mars, drawn from measurements taken by the Mars Global Surveyor program, shows that the planet is a land of extremes, with the highest, lowest and smoothest land forms found in the solar system. There's about 19 to 20 miles difference between the highest and the lowest points on Mars, about 1 1/2 times the range of elevation seen on Earth, said David Smith, a NASA scientist and the lead author of a study appearing Friday in the journal Science.
WASHINGTON (AP) - Precise measurements of the distance to certain stars suggests the universe is about 12 billion years old, somewhat younger than earlier estimates, a team of NASA astronomers announced Tuesday. Other experts, however, immediately said NASA's results are in error and a solution to one of the basic questions in astronomy is still unknown. A team of 27 astronomers funded by NASA and led by Wendy Freedman of the Carnegie Institute of Washington announced completion of an 8-year effort to measure the distance to 800 special stars in order to calculate the speed at which all of the galaxies in the universe are moving apart. The result is a critical factor in determining the age of the universe.
By Kenneth Chang ABCNEWS.com
Upon closer examination, the universe appears to have shed about a billion years off its age.
Charles Lineweaver, a physicist at the University of New South Wales in Australia, writing in Friday’s issue of the journal Science, pegs the age of the universe at 13.4 billion years, give or take 1.6 billion years. Most earlier estimates had put the universe’s age at about 14.5 billion years, and at least one expert still insists the age is probably older than that.
Lineweaver’s calculations draw together the latest astronomical observations to paint a universe that’s lightweight — not enough gravitational mass to halt its expansion — and pushed apart by a mysterious repulsive force.
Meanwhile, a team of 27 astronomers today culminated eight years of Hubble Telescope research with their findings of how quickly the universe is flying apart. Together, the findings help fit the history of the cosmos into one coherent picture.
(CNN) A cyclonic storm system four times the size of Texas swirled across northern polar region of Mars last month, the Space Telescope Science Institute said Wednesday. The spiral storm, spotted by the Hubble Space Telescope, was composed of water ice clouds like storm systems on Earth, rather than dust typically found in Martian storms, astronomers said. The system was about 1,100 mile across, nearly three times as large as the largest previously detected Martian spiral storm system.
(NASA) Stargazers in North America are in for a treat this Friday, May 21, when the quarter moon passes in front of the bright star Regulus. It's a rare naked eye occultation, the likes of which won't be seen again in most parts of North America until 2005.
Astronomers hope that the event, occurring as it does at a convenient time of night over the United States and Canada, will be observed by thousands of sky watchers. If enough people record the occultation on video, then scientists can use the tapes to construct a very precise map of the moon's limb. Accurate profiles of the lunar terrain are important because they help scientists interpret solar eclipses and address issues like the constancy of the sun's diameter and its long-term energy output.
Want to help? You don't have to be an astronomer to participate. All that's required are a good home camcorder (with 12x or higher zoom), a shortwave receiver, and a view of the moon.
The occultation takes place Friday evening, May 21st, for viewers in western North America and on Saturday morning, May 22nd for observers in the east.
Finding Regulus is easy. Go outside after sunset and look toward the southwest. The Moon and Regulus will be shining brightly about 50 degrees above the horizon. Regulus is a 1st magnitude blue-white star located about 85 light-years away. It's thought to be about three times as massive as our sun. Regulus is a popular setting for science fiction stories. For example, the fictional planet Regulus III appeared in the Deep Space Nine episode "Fascination", and events on Regulus V were an important part of the Star Trek episode "Amok Time."
The exact time that the Moon begins to pass in front of Regulus depends on where you live. Generally, the farther west you are, the earlier the occultation will take place. Regulus will vanish behind the Moon's limb before sunset in the far Northwest, during twilight for most of the western and the north-central states, and a little after midnight in the East when the Moon is setting over the western horizon. The occultation will be visible only to observers in northern Mexico, and throughout the United States and Canada.
WASHINGTON (AP) - A cyclone four times the size of Texas raged across the northern polar region of the planet Mars last month, according to space telescope views of the red planet. The Space Telescope Science Institute announced Wednesday that the Hubble Space Telescope on April 27 spotted an immense Martian storm cloud, made up of water ice, that was 1,100 miles long and 900 wide. Bands of clouds spiraled in a counterclockwise motion around a 200-mile wide eye in the center of the storm, taking on a shape that resembled hurricanes on Earth, astronomers said. The storm occurred during the summer in Mars' northern hemisphere. It came after seasonal warming evaporated the carbon dioxide ice sheet that caps the Martian north pole during part of the year.
An Arizona scientist has discovered an 18th moon orbiting the planet Uranus, the International Astronomical Union announced today. Until now, Saturn has been the only planet in our solar system known to have as many as 18 satellites.
Erich Karkoschka, a researcher at the Lunar and Planetary Lab of The University of Arizona in Tucson, made the discovery. The newly found moon is the first satellite of Uranus discovered in1999 but will still be designated as Satellite 1986 U 10 (short S/1986 U 10).
"This discovery is very unusual," Karkoschka said. "Typically, satellites are found within days after the discovery image has been taken. In this case, the discovery image is more than 13 years old."
The interplanetary spacecraft Voyager 2 took seven images of the new atellite when it flew by Uranus in late January, 1986. These images have been publicly available in digital format. However, nobody recognized the satellite until Karkoschka investigated these images recently. He has studied the Uranian satellites based on images taken with the NASA/European Space Agency Hubble Space Telescope (HST) and found the new satellite when he compared his HST results with images taken by Voyager 2.
