Laser finds thousands of lost Mayan structures

Researchers using a laser scanning technology have uncovered 60,000 previously unknown Mayan structures in Guatemala.
The year’s brightest comet streaks by Earth this weekend

The year’s brightest comet streaks by Earth this weekend

14 DEC 18 05:36 ET By Ashley Strickland, CNN (CNN) — The night sky will come alive this weekend when a green comet streaks by Earth on the heels of the Geminid meteor shower‘s display of green fireballs. Comet 46P/Wirtanen began brightening in November, but it will make its closest approach to Earth on Sunday…Continue Reading