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NASA’s next exoplanet hunter, TESS, is scheduled to launch from Cape Canaveral at 6:32 p.m. EDT on April 16, and you can watch. Launch coverage will begin on NASA TV at 6:00 pm.

TESS, short for Transiting Exoplanet Survey Satellite, will be the first NASA science mission launched on a SpaceX Falcon 9 rocket. SpaceX plans for the rocket booster to return after launch and land on a barge in the Atlantic Ocean.

Once TESS is off the ground, it will take two months for the spacecraft to maneuver into an unusual, elongated orbit that slides between Earth and the moon. For every single orbit made by the moon, the spacecraft will orbit twice. That will create a gravitational balance that will stabilize TESS so it doesn’t need to use much fuel.

TESS’ mission is to find planets around some of the nearest and brightest stars, and other telescopes on Earth will then study those planets to understand them better.