Satellites Pose 'Unprecedented Global Threat', Scientists Warn. Here's Why.

Oops, this 300 million-year-old 'blob' fossil was upside down. It's not a jellyfish after all.

Rare Cosmic Event Will See 5 Planets Align in The Sky. Here's How to Watch.

Our Oceans, Lakes And Rivers Don’t Come From Icy Meteorites, Say Scientists