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Planet Mercury with Video Clip

There are eight planets in our solar system including Earth. So far, no life as we know it exists on any planet other than our own. Mercury Mercury, the planet closest to the Sun, has almost no…

Planet Mercury with Video Clip

There are eight planets in our solar system including Earth. So far, no life as we know it exists on any planet other than our own. Mercury Mercury, the planet closest to the Sun, has almost no…

Types of Volcanic Eruptions

—Robert I. Tilling Source: U.S. Geological Survey During an episode of activity, a volcano commonly displays a distinctive pattern of behavior.…

The Search for Life in the Solar System

The Search for Life in the Solar System by Tim Porter While generations of cloned mice and asteroids the size of Texas dominate science in popular culture today, a NASA probe is quietly…

caldera

(Encyclopedia) caldera: see crater.

DK Science: Mercury

FIND OUT MOREMercury is the planet closest to the Sun, and experiences scorching temperatures by day. But it has virtually no atmosphere to trap the heat, so is freezing at night. It is a…

DK Science: The End Of The Dinosaurs

Impact craterDeath from spaceOther dinosaur extinction theoriesAbout 65 million years ago, at the end of the Cretaceous Period, the Earth was affected by major changes to its environment. Animal…

Diamond Head

(Encyclopedia) Diamond Head, peak, 761 ft (232 m) high, along the rim of an extinct volcano, SE Oahu island, Hawaii. A prominent point in the Honolulu skyline, Diamond Head was designated a national…

DK Science: Asteroids

ASTEROID IDANEAR EARTH ASTEROIDSMETEORITESKUIPER BELTFIND OUT MOREBillions of rocky lumps, called asteroids or minor planets, circle the Sun between the orbits of Mars and Jupiter. They occupy…