Top news for December 21, 2008

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NASA's Top 5 Technical Challenges Countdown: #1: Survive the Lunar Night

Colliding Galaxies Tearing at Each Other with Gravity and Radiation

Surviving the Neptunian Desert

Webb Directly Observes a Frigid Exoplanet

Martian Supervolcano Peeks Through the Cloudtops

Filtering Terrestrial Contamination in the Search for Alien Signals

At Cosmic Noon, this Black Hole Was the Life of the Party

The Galactic Center Struggles to Form Massive Stars

Geomagnetic Storms Bring Satellites Down Faster

You're Looking at a Newly Forming Planet