Atlas 5 TDRS-M launch
TDRS-M is the third and final spacecraft in a series built by Boeing for NASA. The spacecraft provide S-, Ka- and Ku-band communications services for the International Space Station, Hubble Space Telescope, and other spacecraft in Earth orbit. Credit: NASA
TDRS-M is the third and final spacecraft in a series built by Boeing for NASA. The spacecraft provide S-, Ka- and Ku-band communications services for the International Space Station, Hubble Space Telescope, and other spacecraft in Earth orbit. Credit: NASA
TDRS-M is the third and final spacecraft in a series built by Boeing for NASA. The spacecraft provide S-, Ka- and Ku-band communications services for the International Space Station, Hubble Space Telescope, and other spacecraft in Earth orbit. Credit: NASA
TDRS-L undergoing preparations for launch. Credit: NASA

NASA To Order Replacement TDRS Satellites in 2007

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WASHINGTON -- NASA is taking preliminary steps toward buying replacements for the constellation of Tracking and Data Relay Satellites (TDRS) it relies on to communicate with the space shuttle and nearly two dozen other spacecraft in low Earth orbit.

Business Missions NASATDRS