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JUNO's Jump to Jupiter
Topic: Jupiter System
NASA's Juno spacecraft is set to launch toward Jupiter on August 5th.

Io's Magma ocean
Topic: Jupiter System
New data analysis from NASA's Galileo spacecraft has revealed a subsurface ocean of magma beneath the surface of Jupiter's moon Io.

The Chance for Life on Io
Topic: Jupiter System
Jupiter´s moon Io is the most volcanically active body in the solar system. Could it also be a habitat for life?

The Difference Between Jupiter's Twins
Topic: Jupiter System
Scientists have attributed the different surfaces and interior states of Jupiter's moons Ganymede and Callisto to cometary impacts that occurred some 3.8 billion years ago. The study in comparative planetology shows how influences from space can shape the formation of celestial bodies.

Jovian X-ray Vision
Topic: Jupiter System
Astronomers using the European Space Agency's XMM-Newton telescope have discovered that observing the giant planet Jupiter may actually give them an insight in to solar activity on the far side of the Sun. Jupiter's x-ray glow is due to x-rays from the Sun being reflected back off the planet's atmosphere.

Jupiter's Rare Triple Eclipse
Topic: Jupiter System
Jupiter has four moons roughly the same size as Earth's Moon. The shadows of three of them occasionally sweep simultaneously across Jupiter. Viewing the triple shadows in 2004 was special, because two of the moons were crossing Jupiter's face at the same time as the three shadows.

Underneath Ganymede's Ice?
Topic: Jupiter System
The largest moon in our solar system, Ganymede, has lumpy mass concentrations underneath its icy shell. The lumpy features appeared by surprise when watching the Galileo spacecraft's flyby and may point to rock features on a ice floor.

Io's Lava Lakes Like Early Earth?
Topic: Jupiter System
Jupiters volcanic moon, Io, spews pillars of salt into its atmosphere, at the rate of about two tons per second. The layers of purgatory brew up often enough to make Io by volcanically active body in the solar system. A single volcano on Io may release a hundred times more lava than all earthly counterparts combined.

Megawatts to Jupiter?
Topic: Jupiter System
A proposed NASA mission to Jupiter for 2011 --called the Jupiter Icy Moon Orbiter--will be the first in a series of interplanetary probes that rely on nuclear electricity. Unlike the Cassini mission slated to orbit Saturn this July, the Jupiter mission would use megawatts to power its instruments and thrusters.

Firing Up for Jupiter
Topic: Jupiter System
An ambitious probe in the planning stages for investigating Jupiter's moons passed an important engine test this month. Using an electrical kickstart from what is called an ion engine provides the kind of efficient, but slow impulse, that can back up plans for much larger nuclear power.

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