Space.com

What's Hot This Week Comet Lovejoy Survives Fiery Plunge Through Sun, NASA Says by Mike Wall, SPACE.com Senior Writer Comet Lovejoy defied the odds and will live to see another day. Can Billionaire Paul Allen's Mega-Plane Really Launch Private Rockets Into Space? by Denise Chow, SPACE.com Staff Writer Microsoft co-founder Paul Allen's next big venture is an airborne spaceship launcher. Sponsored by: New NASA Rover Studying Space Radiation En Route to Mars X-Ray Heartbeat May Reveal Smallest Black Hole Ever Found