Narrator: TESS, the Transiting Exoplanet Survey Satellite,
is NASA’s newest planet hunter. [TEXT: TESS’s first year of science] Here are some of the noteworthy
discoveries from its first year. In September,
the TESS team released its first sector image, a large strip of sky monitored[TEXT: First science image]
for 27 days. By the end of 2018, [TEXT: First planets]
astronomers announced the missions first new exoplanets. A few months later,
astronomers announced the discovery of TESS’s first Earth-size exoplanet. [TEXT: Earth-size exoplanet, HD 21749 c]
The multiplanet systems TESS is finding have much [TEXT: Multiplanet systems]
to teach us. TESS has also spotted comets, both in our [TEXT: Comet C/2018 N1]
own solar system and orbiting other stars. TESS’s cameras [TEXT: Beta Pictoris comets]
even catch many supernovae, bright explosions that mark the deaths of [TEXT: Spotting supernovae]
stars, from their very start. After just one
year, TESS has already expanded our understanding of new worlds
close home and exploding stars beyond our galaxy.