Search results
Results From The WOW.Com Content Network
Galileo sparked the birth of modern astronomy with his observations of the Moon, phases of Venus, moons around Jupiter, sunspots, and the news that seemingly countless individual stars make up the Milky Way Galaxy.
Jupiter has 80 moons. Fifty-seven moons have been given official names by the International Astronomical Union (IAU). Another 23 moons are awaiting names. Jupiter's four largest moons – Io, Europa, Ganymede, and Callisto – were first observed by the astronomer Galileo Galilei in 1610 using an early version of the telescope.
Jupiter’s large Galilean moons – Io, Europa, Ganymede, and Callisto – likely formed out of leftover material after Jupiter condensed from the initial cloud of gas and dust surrounding the sun, early in the history of the solar system.
Overcoming severe radiation damage, the redoubtable orbiter has deployed a probe into Jupiter's atmosphere; studied the hottest volcanoes in the Solar System on Jupiter's moon Io; discovered evidence of subsurface oceans on the moons Europa and Ganymede; and provided new insights into the giant planet's stormy atmosphere, gigantic magnetosphere ...
Jupiter's second largest moon, Callisto, may have a liquid ocean tucked under its icy, cratered crust, according to scientists studying data gathered by NASA's Galileo spacecraft.
Jupiter's intricate, swirling ring system is formed by dust kicked up as interplanetary meteoroids smash into the giant planet's four small inner moons, according to scientists studying data from NASA's Galileo spacecraft.
Callisto and Jupiter’s three other largest moons were discovered in 1610 by Italian scientist Galileo Galilei. Almost 400 years later , a spacecraft bearing his name —the Galileo orbiter—began the first in depth study of the Jovian system, including Callisto and its sister moons.
NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
On 7 December 1995, Galileo will have its one and only opportunity for a close encounter with Jupiter's moon Io, the most volcanically active body in the solar system.
NASA's Galileo spacecraft has successfully completed a flyby of Jupiter's moon Callisto, closer than any of the spacecraft's 30 previous flybys of Jovian moons.