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:
exoplanets.nasa.gov/alien-worlds/ways-to-find-a-pl…

0:00 Introduction
0:38 Direct Imaging
2:12 Transits
3:12 Radial Velocity
5:01 Astrometry
5:53 Gravitational Microlensing
7:18 Conclusion