The Astronomy Center has provided educational resources to introductory astronomy educators since 2003. Over the past 20 years, the rapid pace of discovery has rendered some of our linked resources obsolete. Thus, the Astronomy Center will be decommissioned on March 1, 2022. Our highest quality resources will be retained on ComPADRE.org.
the Goddard Space Flight Center
This website gives an impression of the size of our Universe, starting with the Earth and increasing scale until it reaches the scale of the visible universe. The user can view and learn more about celestial objects that are used as examples. These objects include: the solar system, stars, the Milky Way galaxy, galaxies, clusters of galaxies, sheets, voids, and the farthest reaches of space.
%0 Electronic Source %A Masetti, Maggie %D March 1, 2008 %T The Cosmic Distance Scale %I Goddard Space Flight Center %V 2023 %N 6 December 2023 %8 March 1, 2008 %9 text/html %U https://imagine.gsfc.nasa.gov/features/cosmic/
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