Explorer 1 60th Anniversary Michael Freilich, Director of the Earth Science Division of NASA's Science Mission Directorate, speaks during an event celebrating the 60th Anniversary of the Explorer 1 mission and the discovery of Earth's radiation belts, Wednesday, Jan. 31, 2018, at the National Academy of Sciences in Washington. The first satellite, Explorer 1, was launched from Cape Canaveral on January 31, 1958. The 30-pound satellite would yield a major scientific discovery, the Van Allen radiation belts circling our planet, and begin six decades of groundbreaking space science and hum

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Explorer 1 60th Anniversary Michael Freilich, Director of the Earth Science Division of NASA's Science Mission Directorate, speaks during an event celebrating the 60th Anniversary of the Explorer 1 mission and the discovery of Earth's radiation belts, Wednesday, Jan. 31, 2018, at the National Academy of Sciences in Washington. The first satellite, Explorer 1, was launched from Cape Canaveral on January 31, 1958. The 30-pound satellite would yield a major scientific discovery, the Van Allen radiation belts circling our planet, and begin six decades of groundbreaking space science and human exploration. (NASA/Joel Kowsky)

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Keywords: 1, 60th, academy, anniversary, dc, explorer, freilich, joel, kowsky, michael, nasa, national, sciences, washington