Jupiter moon Io most volcanically active object in the solar system

Q.  Which is the most volcanically active object in the solar system?
- Published on 04 Aug 16

a. Io
b. Ganymede
c. Cassini
d. None of the above

ANSWER: Io
 
Jupiter’s volcanic moon Io has a thin atmosphere collapsing in the shadow of the planet condensing as ice says NASA funded research
  • This reveals the freezing effects of its shadow during the daily eclipses on the moon’s volcanic gases.
  • Io is the most volcanically active object in the solar system.
  • This is the first time scientists have observed this phenomenon increasing understanding of the geologically active moon.
  • Volcanoes are caused by tidal heating, the result of gravitation forces from Jupiter and other moons.
  • Forces can result in geological activity such as emission of umbrella like plumes of sulphur dioxide gas which can extend to 480 km above Io and produce extensive basaltic lava fields flowing for 100s of miles.
  • Io’s atmosphere is in constant state of collapse and repair and shows a large fraction of the atmosphere is supported by sublimation of So2 ice.

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