NASA has planned to build a Starshade to look for Alien Planets. Starshade exoplanet-hunting missions may be technologically daunting.
According to new data analysis from NASA’s Galileo spacecraft, scientists discovered magma ocean under Jupiter’s volcanic moon Io. Jupiter’s moon Io is the most volcanically active moon of all the solar system and it throws annually on its surface lava about 100 times larger than Earth. The new research was conducted by scientists at the University of California, Los Angeles,Santa Cruz, and the University of Michigan, Ann Arbor. Researchers calculated that the depth of the magma ocean is about 50 km and more.According to scientists, partly Io‘s volcanism also caused by its parent planet, Jupiter, which produces enormous gravitational waves that pierce Io and procure disturbance of molten rock under the crust of Io. Based on this analysis, researchers suggest that a significant part of the magma ocean on Io is composed of molten iron and magnesium. This fact confirms the surface of Io, where Galileo discovered rock of lherzolite, magma formation, with silicates of magnesium and iron.The magma ocean layer on Io is more than 50 kilometers (30 miles thick), making up at least 10 percent of the moon’s mantle by volume. The temperature of the magma ocean probably exceeds 1,200 degrees Celsius (2,200 degrees Fahrenheit).
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