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: http://www.jpl.nasa.gov/videos/sputnik/sputnik20071003/

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. http://www.nsf.gov/news/mmg/mmg_disp.cfm?med_id=55655&from=vid 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....

Amazing Earth 2

submitted by: scivee-team

A documentary about volcanic eruptions, their causes and effects on Earth and the geological implications of those events in history and in the future - Part 2.

Amazing Earth 1

submitted by: scivee-team

A documentary about volcanic eruptions, their causes and effects on Earth and the geological implications of those events in history and in the future - Part 1.

Earth's Destiny

submitted by: scivee-team

A possible outlook for Planet Earth in a few billion years.What will happen to Planet Earth in a few billion years?

Studying the Sun

submitted by: scivee-team

Observing the sun - from Galileo's time to today.