When the solar system first took up the task of building solid bodies—such as planets, moons and protoplanets—it basically had a choice between two ingredients: heat-forged chondrules, which were ...

The number of rocky extrasolar planets being discovered continues to increase, but so too does the apparent diversity of such worlds.

Mercury, Venus, Earth, Mars...When you hear the names in order, some of you might think, "I learned that in school."But doesn't the Moon belong to that group?Does asteroid just mean a small ...

Illustration comparing the planets of the Solar System and the Sun on the same scale. The planets are shown to scale relative to each other but their distances are not. From left to right the bodies ...

Discover the powerful volcanic eruptions that have shaped worlds across our solar system. Around our solar system, violent eruptions are shaping distant worlds. Discover the explosive forces that ...