All the planets in our solar system orbit the Sun. Planets that orbit other stars are called exoplanets. Exoplanets are very difficult to see directly with telescopes. They are hidden by the bright glare of the stars they orbit.

Therefore, astronomers use other ways to detect and study these distant planets. They look for exoplanets and study their impact on the stars they orbit.

One way to look for exoplanets is to look for "wobbly" stars. A star that has planets does not orbit perfectly around its center. From a distance, this off-center orbit makes the star look like a wobbling star.