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Recent Articles
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Topic: Callisto
In 1610, Italian astronomer Galileo Galilei pointed his telescope to the night sky, discovering the four moons of Jupiter – Io, Europa, Ganymede, and Callisto. In that same year, Galileo also discovered a strange oval surrounding Saturn, which later observations determined to be its rings. ![]() Saturn, top, and Jupiter, below, are seen after sunset from Shenandoah National Park, Sunday, Dec. 13, 2020, in Luray, Virginia. The two planets are drawing closer to each other in the sky as they head towards a “great conjunction” on December 21, where the two giant planets will appear a tenth of a degree apart. (NASA/Bill Ingalls) «Read the rest of this article» Sections: Technology | No Comments
NASA instruments approved for ESA JUpiter ICy Moons Explorer (JUICE) missionNASA Headquarters
Designed to investigate the emergence of habitable worlds around gas giants, the JUpiter ICy Moons Explorer (JUICE) is scheduled to launch in five years, arriving at Jupiter in October 2029. JUICE will spend almost four years studying Jupiter’s giant magnetosphere, turbulent atmosphere, and its icy Galilean moons—Callisto, Ganymede and Europa. «Read the rest of this article» Sections: Technology | No Comments
NASA reports Venus, Jupiter and Mars to form Triangle of Planets this monthScience at NASA
Except this week. In the days ahead, if you find yourself yawning over your morning coffee before sunrise, longing for repose, just take a look out the window. Three bright planets are converging in the eastern sky–and the view is an eye opener. «Read the rest of this article» Sections: Technology | No Comments
NASA missions have discovered an abundance of Water in our Solar SystemWritten by Preston Dyches
“NASA science activities have provided a wave of amazing findings related to water in recent years that inspire us to continue investigating our origins and the fascinating possibilities for other worlds, and life, in the universe,” said Ellen Stofan, chief scientist for the agency. “In our lifetime, we may very well finally answer whether we are alone in the solar system and beyond.” ![]() NASA is exploring our solar system and beyond to understand the workings of the universe, searching for water and life among the stars. (NASA) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Hubble Space Telescope takes photo of three moons transiting the face of Jupiter in rare conjunctionWritten by Rob Gutro
These so-called Galilean moons, named after the 17th century scientist Galileo Galilei, who discovered them with a telescope, complete orbits around Jupiter with durations ranging from 2 days to 17 days. They can commonly be seen transiting the face of Jupiter and casting shadows onto its cloud tops. ![]() Hubble Captures Rare Triple-Moon Conjunction of Jupiter’s largest moons: Europa, Callisto, and Io. (NASA, ESA, and the Hubble Heritage Team (STScI/AURA)) «Read the rest of this article» Sections: Technology | No Comments
NASA research shows Jupiter’s moon Ganymede may have layers of ice and oceansWritten by Whitney Clavin
Previously, the moon was thought to harbor a thick ocean sandwiched between just two layers of ice, one on top and one on bottom. ![]() This artist’s concept of Jupiter’s moon Ganymede, the largest moon in the solar system, illustrates the “club sandwich” model of its interior oceans. (NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
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