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Our Glaciers: Then and Now activity kit helps you see the changes taking place in glaciers around the world. See all our activity kits and classroom activities.

Pick a Postcard - People


Photo of Albert Einstein.
Courtesy of Tracey Keifer. Emilio Segre Visual Archives. American Institute of Physics.

Picture of Marie Curie
The Bettmann Archive

Portrait of Edwin Hubble
The Archives, California Institute of Technology

Picture of Max Planck
Courtesy UPI/Bettmann

Picture of Ernest Rutherford
The Bettmann Archive. From painting by James Gunn (1932).

Picture of Linus Pauling
Courtesy UPI/Bettmann

Photograph of Carl Sagan
Robert Reichert and Cornell University.

Picture of Charles Darwin
The Bettmann Archive

Picture of Ben Franklin
Tracey Keifer. Emilio Segre Visual Archives. American Institute of Physics.

Picture of Leonardo DaVinci
The Bettmann Archive

Portrait of Galileo Galilei
Ottavio Leoni, Reunion des Musees Nationaux

Portrait of Neil Armstrong
NASA

Portrait of Sally Ride
NASA

Portrait of John Glenn
Courtesy of NASA

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA