News tagged with asteroid belt

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What are asteroids made of?

What are asteroids made of? Asteroids are made mostly of rock—with some composed of clay and silicate—and different metals, mostly nickel and iron. But other materials have been found in asteroids, as well.

dateSep 14, 2015 in Space Exploration
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What are asteroids?

4.6 billion years ago, our solar system formed from a collection of gas and dust surrounding our nascent sun. While much of the gas and dust in this protoplanetary disk coalesced to form the planets, some of the debris was ...

dateSep 10, 2015 in Space Exploration
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What is the asteroid belt?

In the 18th century, observations made of all the known planets (Mercury, Venus, Earth, Mars, Jupiter and Saturn) led astronomers to discern a pattern in their orbits. Eventually, this led to the Titius–Bode law, which ...

dateAug 24, 2015 in Space Exploration
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Secret of Rosetta's cool

These might resemble venetian window blinds, but they are actually a key technology enabling ESA's Rosetta spacecraft to travel safely from the Sun-warmed inner Solar System to the frigid expanse of the Asteroid Belt, then ...

dateAug 20, 2015 in Space Exploration
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The dwarf planet Ceres

The asteroid belt is a pretty interesting place. In addition to containing between 2.8 and 3.2 quintillion metric tons of matter, the region is also home to many minor planets. The largest of these, known as Ceres, is not ...

dateAug 12, 2015 in Space Exploration
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What is the Kuiper Belt?

Dr. Mike Brown is a professor of planetary astronomy at Caltech. He's best known as the man who killed Pluto, thanks to his team's discovery of Eris and other Kuiper Belt Objects. We asked him to help us explain this unusual ...

dateJun 17, 2015 in Space Exploration
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Fly over Ceres in new video

A new animated video of dwarf planet Ceres, based on images taken by NASA's Dawn spacecraft, provides a unique perspective of this heavily cratered, mysterious world.

dateJun 08, 2015 in Space Exploration
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