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  • Artist rendering of Viking 1 on the surface of Mars. Image credit: NASA Ames Research Center, 1977
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Celebrating Viking: The First U.S. Landing on Another Planet

Mon Jul 20, 2026 3:00 PM - 8:00 PM Cannon Caucus Room, Room 390, Cannon House Office Building

Celebrating Viking: The First U.S. Landing on Another Planet

Mon Jul 20, 2026 3:00 PM - 8:00 PM Cannon Caucus Room, Room 390, Cannon House Office Building

Hosted by

The Planetary Society

Johns Hopkins University

National Air and Space Museum

SpaceNews

Organized in conjunction with the Congressional Planetary Science Caucus

On July 20, 1976, NASA's Viking 1 touched down on the surface of Mars, becoming the first U.S. spacecraft to successfully land and operate on another planet. Fifty years later, the United States remains the undisputed leader in Mars exploration, with a legacy of orbiters, landers, and rovers that have transformed our understanding of the Red Planet.

Join The Planetary Society, Johns Hopkins University, the Smithsonian National Air and Space Museum, and SpaceNews to mark this milestone. Hear from the engineers and scientists who made Project Viking possible, and look ahead to the future crewed and robotic missions that will define the future of Mars exploration.

This event takes place in the Capitol Complex and is free and open to the public. All attendees must pass through Capitol security screening, so plan to arrive at least 15 minutes early. More details and useful tips will be sent prior to the event. For this reason, registration is strongly encouraged.

Location

Cannon Caucus Room, Room 390, Cannon House Office Building