Tag Archives: Saturn

Curiosity images planets, asteroids, Mars moons

A new image from NASA’s Curiosity Mars rover is the first ever from the surface of Mars to show an asteroid, and it shows two: Ceres and Vesta. These two — the largest and third-largest bodies in the asteroid belt … Continue reading

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Why is Mars so small?

Because it was starved during infancy, says Kevin Walsh (Observatoire de la Cote d’Azur and Southwest Research Institute, Boulder). In a paper in Nature, written with four colleagues and published June 5, 2011, he argues that when the planets were … Continue reading

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