Search results
Results from the WOW.Com Content Network
Io (/ ˈ aɪ. oʊ /), or Jupiter I, is the innermost and second-smallest of the four Galilean moons of the planet Jupiter.Slightly larger than Earth's moon, Io is the fourth-largest moon in the Solar System, has the highest density of any moon, the strongest surface gravity of any moon, and the lowest amount of water by atomic ratio of any known astronomical object in the Solar System.
These gases exist up to a distance of 10 times the radius of Io. Image of Io in false colour. Most of Io's surface is visible. The dark part is lit by reflected light from Jupiter (Jupitershine).The burst of white light near Io's eastern equatorial edge is sunlight being scattered by the plume of the volcano Prometheus.
Jupiter is usually the fourth-brightest object in the sky (after the Sun, the Moon, and Venus), [102] although at opposition Mars can appear brighter than Jupiter. Depending on Jupiter's position with respect to the Earth, it can vary in visual magnitude from as bright as −2.94 at opposition down to −1.66 during conjunction with the Sun ...
Io has an extremely thin atmosphere made up mostly of sulfur dioxide (SO 2). [29] If a surface data or collection vessel were to land on Io in the future, it would have to be extremely tough (similar to the tank-like bodies of the Soviet Venera landers) to survive the radiation and magnetic fields that originate from Jupiter. [30]
The James Webb Space Telescope has detected carbon, a building block of life, on the surface of Jupiter’s icy moon Europa.
Astronomers know of more than 400 volcanoes strewn across the surface of Io. Io is the most volcanically-active body in the Solar System apart from the Earth. Volcanos on Jupiter’s moon are ...
The reflectivity of the asteroid’s surface best matches material from the Lunar Highlands, or the bright, rough terrain on most of the moon’s surface, he said.
The atmosphere of Jupiter is the largest planetary atmosphere in the Solar System. It is mostly made of molecular hydrogen and helium in roughly solar proportions; other chemical compounds are present only in small amounts and include methane, ammonia, hydrogen sulfide, and water. Although water is thought to reside deep in the atmosphere, its ...