photo credit: Nils van der Burg
Bob Miller's Light Walk
These pinhole images of the sun, made by the small openings between leaves, show a nearly-total solar eclipse. For more about pinhole images, see Bob Miller's Light Walk and Pinhole Investigations (both Exploratorium sites).
This feature was updated on July 4, 2013.
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Try this NASA site if you'd like to develop a mission to a habitable planet. You can get interactive online training--with lots of graphics--in astronomy, atmospheric science, geology, and biology. Then, using what you've learned, you can design a planet tailor-made for life.
For more on the habitability of planet Earth, see Life on Earth and Elsewhere.