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In pictures: Fascinating asteroids

Photos Logo Photos | Slide 1 of 18: Nasa undated handout artist's impression of the asteroid belt surrounding the star Vega, the second brightest star in the northern night sky, which may have a family of planets similar to the Sun's, say scientists.

Asteroids, also referred to as minor planets, are small, rocky bodies floating mostly in the asteroid belt – between the orbits of Mars and Jupiter. They are mainly made of materials (metal or rock) left over from the formation of the inner solar system.

© NASA/JPL-Caltech/PA Archive/PA Images
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