Asteroids rich in rare elements could be harvested for their valuable contents, but the real worth may be in using them as interplanetary fuel stations

Seeking answers to your science questions? Ask our resident expert, Peter Gallivan

A detail from “Dynamism of a Soccer Player” ...

In 1874, the Scottish-American industrialist Andrew Carnegie completed the mile-long Eads Bridge, made of steel and crossing the River Mississippi into St. Louis. At the time, nobody believed that ste

Explore the variety of ice types found in nature, their properties and how they form

Many of the most dramatic cosmic events take the form of explosions, from asteroid impacts to the Big Bang itself. Here are some of the most spectacular examples