In the last 30 years, astronomers have confirmed the existence of more than 3,000 exoplanets orbiting stars other than our sun, reports Harry Stevens in Axios. See an interactive graphic of all of the known planets in the Milky Way and read what Sara Seager said about the Kepler missions and why she's excited for the findings from its successor, the Transiting Exoplanet Survey Satellite (TESS), which was launched in April. Full article here.