How do we prevent space collisions?

How do nations prevent collisions between spacecraft? Is there a space traffic control?
22 November 2021
Presented by Katie King
Production by Katie King.

GPS-SATELLITE

GPS satellite

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This week, Matt contacted us asking "With three space missions currently converging on Mars how do the nations avoid orbital collisions? Do they share data, do they have transponders or space traffic control etc?". Katie King spoke with Chris Bridges, academic at Surrey Space Centre in the University of Surrey to find out how we keep our spacecraft from colliding....

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