Answer:
Many astronomers assume the existence of planets that orbit a star other than the Sun and, therefore, does not belong to the solar system. But thanks to NASA technology, some bodies of land mass could be recognized orbiting other stars not so far away from our solar system using the radial velocity method.
Explanation:
An extrasolar planet or exoplanet is a planet that orbits far from the gravitational force of our sun, but is affected by the gravitational force of another star.
The first detection of an extrasolar system was in 1995 by astronomers Michel Mayor and Didier Queloz, an extrasolar planet called Dimidio that orbited near a star called Helvetios in the constellation Pegasus, recognized by the mass as a gas giant.
The discovery of the first extrasolar planet formed an important astronomy success by showing astronomers that giant-type planets could exist in short-term orbits.
Then and therefore there is evidence of planets outside our solar system.
