NASA`s Planet-hunting TESS catches a comet before starting science
(PHYSorg.com Space & Earth)

Before NASA`s Transiting Exoplanet Survey Satellite (TESS) started science operations on July 25, 2018, the planet hunter sent back a stunning sequence of serendipitous images showing the motion of a comet. Taken over the course of 17 hours on July 25, these TESS images helped demonstrate the satellite`s ability to collect a prolonged set of stable periodic images covering a broad region of the sky-all critical factors in finding transiting planets orbiting nearby stars.