Top news for December 21, 2008

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On This Day In Space: Nov. 18, 2013: NASA launches MAVEN orbiter to Mars

NASA rolls huge Artemis 1 moon rocket off the launch pad (photos)

‘Mango Man’ Is the Fruit’s Foremost Poet, Philosopher, Fan and Scientist

Amateur Astronomer Discovers New ‘Fossil’ Of First Galaxies

Head Injuries Can Rewire Whole-Brain Networks in Mice, Important New Maps Reveal

How do planets get moons?

Study of Ancient Mass Extinction Reveals Dinosaurs Took Over Earth Amid Ice, Not Warmth

Our Sun’s 5 Biggest Remaining Mysteries

History and How It’s Made: The Gloppy Chemistry of Ketchup

This Supermassive Black Hole Spins Slower Than Expected, And We Aren't Sure Why