The Sagan Series is a collection of tribute vidoes dedicated to the late, great Carl Sagan. Breath-taking cinematography and a mesmerising soundtrack lends a powerful scenery to Sagan's narration from his hit TV series, Cosmos: A Personal Voyage.
Click on any experiment to view it.
Scientists have turned up rare evidence that space-time is smooth as Einstein predicted, while pushing closer to a complete theory of gravity. From NASA Goddard Space Flight Center.
A different astronomy and space science related image is featured each day, along with a brief explanation.
This Tron-esque glowing blue ring isn't the latest designer lamp. In fact, it's NASA's cutting-edge solar-electric propulsion thruster, being tested in the Jet Propulsion Laboratory.