Deciphering the secrets of falling stars

Scientist Lin Yangting collects meteorites, or 'pennies from heaven', to study

Lin Yangting has touched nearly 6,000 falling stars, or meteorites, and each tells a different story about the universe.

A researcher with the Institute of Geology and Geophysics, Chinese Academy of Sciences, Lin looks for tiny particles, thinner than one-tenth or even a hundredth of the width of a strand of hair, in the meteorites, which hide the big secrets of the solar system and the universe.