Though scientists aren't sure how the lithosphere came to be divided into plates, certain aspects of Earth's geology keep the plate tectonic engine chugging along. For a planet to sustain plate ...

There's a lot more to Earth than meets the eye. Far from being just a roundish rock barreling through space, our planet is composed of several layers held together by intense forces of gravity.

The climate on such a world must be beyond bizarre. A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away. The planet, known as HD ...

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Each planet in the solar system is characterized as different cricket team players, with unique behaviors and skills. Earth is the dependable captain, Jupiter is the power hitter, and Uranus is ...

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Venus and Saturn will set about three hours after sunset.Venus and Saturn are currently in conjunction, meaning the planets appear close together in the night sky from Earth. These two planets are ...

Each of the rings wields one of Earth’s elemental forces, and together the Planeteers can use the rings to summon Captain Planet. Fans can expect Pepose to bring his love of the original Captain ...

The ecliptic is also the reason that we on Earth sometimes observe planets appearing to approach closely to each other in the sky "while they careen around the cosmic racetrack," according to NASA.

And yes, they'll be in a line. But because planets always appear in a line from our Earth-bound vantage, the alignment isn't anything out of the norm. What's less common, according to astronomers ...

An asteroid has a small chance of hitting Earth less than eight years from now ... detected in December and its odds of impacting our planet have increased slightly since then, according to ...

Since they are inner planets as seen from Earth, Venus and Mercury appear to us to wax and wane in illumination. Venus is currently shrinking to a crescent as it gets closer to Earth. The ...