Transiting Exoplanet Survey Satellite
Transiting Exoplanet Survey Satellite (TESS).

Although SpaceX has made four cargo deliveries to the international space station under contract to NASA and is poised to make its fifth next month, the TESS contract marks only the second time NASA has tapped SpaceX to launch a science satellite.

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Brian Berger is editor in chief of SpaceNews.com and the SpaceNews magazine. He joined SpaceNews.com in 1998, spending his first decade with the publication covering NASA. He was named senior staff writer in 2004, a position he held until being named...