The launch of Explorer 1 on Jan. 31, 1958, initiated six decades of groundbreaking scientific discovery and human exploration that NASA and its partners continue to this day.

The video and images here are available for download by media covering the 60th anniversary. Unless otherwise indicated, please credit NASA when using this material.

Media contacts:

Steve Cole, NASA HQ Office of Communications 202-358-0918 or

Alan D. Buis, NASA JPL Media Relations, 818-354-0474 or