A laser-engraved, intricately decorated dial with an unusual arrangement proves there is more than one type of ...

Another worry is the presence of micrometeoroids, which could possibly smash into the space suit and puncture it. The risk is illustrated by craters and holes seen sometimes on the ISS exterior ...

A giant patch of black, fossilized lava that was spewed across the Sahara desert over millions of years looks like an eerie, gold-speckled shadow in this stunning composite of three years' worth ...