This Flash-based viewer allows you to view real-time NASA satellite images of the Sun and the Earth. Near real-time images from a variety of NASA satellites and ground-based observatories are presented. Enjoy zooming and panning the images! A scale tool with the size of the Earth is also presented with the solar images.
This new experiential Web site lets you explore Chaco Canyon and the Yucatan to learn about NASA research on the Sun and solar practices within a larger historical and cultural context.
Take a solar walk through time with this Flash-based Interactive Timeline. (Originally featured in the 2005: Ancient Observatories, Timeless Knowledge web site)
Earth's magnetic poles reverse their geographic locations every 300,000 years. The last event happened 780,000 years ago.