Astrophysicists use various methods to discover and study exoplanets, or planets orbiting stars outside our solar system. Techniques include the transit method, where a planet passes in front of its host star and causes a temporary dip in brightness, and the radial velocity method, which detects wobbles in a star's position due to gravitational interactions with an orbiting planet. These methods help in understanding the habitability and potential for life on other worlds.
