NASA's TESS exoplanet-hunting satellite celebrates 5 years in space

Illustration of NASA’s Transiting Exoplanet Survey Satellite (TESS) at work.

NASA's Transiting Exoplanet Survey Satellite, or TESS, is now in its fifth year scanning the sky for new worlds. 

Since its launch on April 18, 2018, TESS has mapped over 93% of the sky from its orbit around Earth, and in that time has produced 329 exoplanet confirmations and thousands more candidates.