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Astronomers Witness Silhouette Of Planet Crossing Distant Star, Proving The Existence Of Extra-Solar Planets
November 16, 1999 — Astronomers have witnessed for the first time a distant planet passing in front of its star, providing direct and independent confirmation of the existence of extrasolar planets that to date have ... > full story -
New Galileo Images Reveal Hawaiian-Style Volcano On Io
November 5, 1999 — A volcanic crater several times larger than one found at Hawaii's Kilauea volcano has been photographed on Jupiter's moon Io during a close flyby performed by NASA's Galileo spacecraft. ... > full story -
Astronomers Sight An Asteroid's Moon
October 7, 1999 — Astronomers this week announced their discovery of a moon orbiting an asteroid, in the first images ever obtained of such an object from Earth. Only one satellite orbiting an asteroid had been seen ... > full story -
Battery Acid Chemical Found On Jupiter's Moon Europa
October 4, 1999 — Sulfuric acid -- a corrosive chemical found on Earth in car batteries -- exists on the frozen surface of Jupiter's icy moon Europa. ... > full story -
Arizona Scientists Say Ocean Tides Create Europa's Unique "Cycloid" Cracks
September 23, 1999 — Planetary scientists at the University of Arizona in Tucson provide a model for how chains of scalloped lines on the cracked icy surface of Jupiter's moon Europa are created. It is perhaps the ... > full story -
Yellowstone Park Is Old Faithful Stand-In For Jupiter's Moon
September 22, 1999 — NASA scientists have found that when it comes to teaching educators about volcanoes in the solar system, there's no place like Jupiter's fiery moon Io -- except for Yellowstone National Park ... > full story -
Bloated Stars Swallow Giant Planets
August 13, 1999 — The phrase "big fish eat little fish" may hold true when it comes to planets and stars. Perhaps as many as 100 million of the sun-like stars in our galaxy harbor close-orbiting gas giant ... > full story -
Chlorine Discovery Near Jupiter Moon Hints At Salt Presence On Surface
June 4, 1999 — The recent discovery of chlorine above Io, a moon of Jupiter, indicates the odd object may hold common table salt, according to two University of Colorado at Boulder ... > full story -
Hubble Clicks Images Of Io Sweeping Across Jupiter
April 28, 1999 — While hunting for volcanic plumes on Io, NASA's Hubble Space Telescope captured images of the volatile moon sweeping across the giant face of Jupiter. Only a few weeks before the dramatic images ... > full story -
Wanted: Earthlings To Share The Joys Of Our Solar System
April 22, 1999 — The hunt is on for at least 40 additional science educators to share the thrill of solar system exploration with America's communities through the Jet Propulsion Laboratory's Solar System ... > full story
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