Rather than slowly condensing over millions of years, the first building blocks of Earth and other planets may have formed ...

Even at a glance, the planets in our solar system are wildly diverse. Huge and small, airless and densely packed with ...

Humanity has built some incredibly destructive weapons. There are still roughly 12,000 nuclear warheads on Earth today, ...

An international team including astronomers from the Center for Astrophysics | Harvard & Smithsonian (CfA) has announced the discovery of a planet about twice the size of Earth orbiting its star ...

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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 ...

New simulations suggest that up to four of the solar system's rocky planets, including Earth and a long-lost world, once orbited in mathematical harmony around the infant sun. When you purchase ...

Ismael Mireles, a Ph.D. candidate at the University of New Mexico (UNM) and his team have confirmed the existence of three ...

Our solar system consists of the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, as well as countless asteroids and comets, that are gravitationally bound to the Sun.

Earth Day is April 22, but activities begin this weekend. They include a festival featuring Washington’s favorite geologist, ...