Jupiter's Europa moon 'likeliest to have life'

US astronomers looking for life in the solar system believe that Europa, one of the moons of Jupiter, which has an ocean, is much more promising than desert-covered Mars, which is currently the focus of the US government's ...

Research sheds light on the moon's dark craters

The next wave of robots to fly to Mars in 2020 could offer scientists an unprecedented understanding of Earth's closest neighboring planet. But there are still mysteries to be solved much closer to home, on Earth's own moon.

Clocking Neptune's spin

(PhysOrg.com) -- By tracking atmospheric features on Neptune, a UA planetary scientist has accurately determined the planet's rotation, a feat that had not been previously achieved for any of the gas planets in our solar ...

Dwarf planet Ceres: 'A game changer in the solar system'

In March of 2015, NASA's Dawn mission will arrive at the dwarf planet Ceres, the first of the smaller class of planets to be discovered and the closest to Earth. Ceres, which orbits the Sun in the asteroid belt between Mars ...

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