Top news for December 21, 2008

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On this day in space! Oct. 14, 1947: Chuck Yeager smashes the sound barrier.

A Supernova That Stunned Stargazers In The Year 1181 Has Finally Been Found—And It’s A ‘Zombie’ Star

Spice (Synthetic Marijuana) Withdrawal Symptoms More Severe Than Cannabis

Mass Extinction Events Can Turn Freshwater Into Toxic Soup, And It's Already Happening

5 Hazards Astronauts Face in Human Spaceflight

More Than 1 in 10 COVID-19 Patients Were Infected After Hospital Admission in First Pandemic Wave

Scientists Want to Bring the Woolly Mammoth Back From Extinction

Why do the planets in the solar system orbit on the same plane?

Science Made Simple: What is Nanoscience?

Interactive Web Experiences: Take a 3D Spin on Mars and Track NASA’s Perseverance Rover