The Space Age Is Born

submitted by: nasa

View excerpts from an upcoming documentary,"Explorer 1: JPL and the Beginnings of the Space."
For more information see:

Time Dilation Video

submitted by: nsf
Is time different to observers moving at different speeds? For more information, see the World Year of Physics 2005 feature. A RealPlayer streaming version of the video also is available. To see the clip with the captions on, you will need to select Tools > Preferences > Content > Use Supplemental text captioning when available, or deselect it if you do not wish to see the captions. Then re-start the video....

The Outer Planets

submitted by: scivee-team

Professors Gary Flandro and Bruce Murray discuss turning a journey to the outer planets Jupiter, Saturn, Uranus and Neptune a possibility.Plotting a trip to the outer planets.

Space Week: Roving Mars, Part 1

submitted by: scivee-team

The creation and expectations of a Rover robot meant to explore Mars.With brilliant design and hard work, the Rover engineers create a robotic wonder to explore Mars.

Space Week: Roving Mars, Part 2

submitted by: scivee-team

The journey of a Rover from its launch to its touchdown on Mars.How do you get a Rover to Mars? Here's the trip from launch to touchdown.

Landing on Mars

submitted by: scivee-team

Gerry Soffen, a Viking Mission Scientist, talks about his memories from the first successful landing on Mars and what it revealed about the planet's surface.Looking back at the dramatic first landing on Mars.