Far above your head, in the atmosphere between Earth and outer space, an invisible process is occurring. The increasing ...

Discover why Ecuador's Mount Chimborazo is the closest point to space, despite Mount Everest's greater height above sea level ...

•In one year, the top 1% — 3.5 million citizens — increased their wealth by $4 trillion, hitting a record $52 trillion. •In ...

Staring at the sun—a close (but safe) look at our home star Staring at the sun—a close (but safe) look at our home star Need a new idea to keep kids entertained? Try stargazing. Need a new idea to ...