The upper part, or hood, contained the clock itself; the middle, or waist, held the pendulum; the base provided support as well as a place for the clock's weights.

A team led by the Italian National Institute for Astrophysics discovered the most distant known fossil galaxy — a relic of ...

For roughly the first 100 million years of the universe, there were no stars. This is what we call the "Cosmic Dark Ages". We ...