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Alien Sightings
Here are 10 of the most interesting, provocative, influential possible alien sightings on record.

Biggest Moments in the Search for Aliens
From Copernicus to the Allen Telescope Array, revisit the cornerstone moments in our search for extraterrestrial life.

Innovations Needed for Deep Space Exploration
NASA researchers and other brains are hard at work contemplating the challenges of deep space travel.

Lessons from the Shuttle Program
The shuttle program has contributed to our understanding of the universe and helped us to explore how we might one day live on another celestial body.

Space Shuttle Program Memories
In chronological order, here are some of the highlights of the Space Shuttle Program.

Fast Facts about Earth
You might know your world history, but do you know facts about the planet?
Jupiter Facts
Take a look at 10 facts -- some startling, some sublime -- about the largest planet in our solar system.

Facts about Planet Neptune
Though Neptune was discovered back in 1846, scientists didn't know all that much about the planet until the Voyager 2 probe in 1989.

Space Facts: The Sun
Check out the facts we've gathered to find out if the sun is the benevolent king of our solar system or the terrible tyrant.

Tips for Spotting UFOs
Is that a UFO or do I just need to clean my glasses? Pat Kiger shares ways to spot extraterrestrials and confirm your sightings.

Ways to Stop an Asteriod
The catalyst for the mass extinction of the human race could be hurtling toward Earth right now. Fortunately, we have 10 rough plans on how to deal.

Weirdest Things in Space
From super-fast stars to the nature of matter, here we cover other strange and mysterious elements of the universe.

Science Top Ten Library

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