Exoplanet Detection Methods | The Simple Version

There are five methods astronomers use to find planets outside our solar system: direct imaging, transits, radial velocity, astrometry, and gravitational microlensing. We avoid the math and only talk about the big picture! NASA Exoplanet Archive: https://exoplanets.nasa.gov/alien-wor... 0:00 Introduction 0:38 Direct Imaging 2:12 Transits 3:12 Radial Velocity 5:01 Astrometry 5:53 Gravitational Microlensing 7:18 Conclusion