Unlike rocky planets such as Mars and Earth, angrites do not have a lot of silicon dioxide. Because of this, astronomers have ...

A meteorite found in the Sahara is forcing scientists to rethink what kinds of worlds once circled the young sun. The rock, ...

(Ianm35/iStock/Getty Images Plus) The Solar System is one of the comforting constants of human existence. No matter what else ...

Our solar system may have hosted up to six giant planets in its first hundred million years, a new study suggests. The ...

The Solar System is filled with large bodies, between planets, dwarf planets, and large moons. The count goes from dozens to ...

Our solar system is a smashing success. A new study suggests that from its earliest period — even before the last of its nebular gas had been consumed — Earth’s solar system and its planets looked ...

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A planet nearly ten times wider than Earth sounds like the definition of solidity. Saturn certainly looks that way. Its broad ...

While its star projector leaves a lot to be desired, the Science Can Solar System Planetary Projector is a fantastic educational tool for kids, with its solar system model, complete with talking ...

The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are added to the count on a rolling basis by scientists from around the world, ...

As it turns out, the conditions that set Venus and Jupiter up for their conjunctions in the sky are the same that are ...