
Thirty years after the confirmation of the existence of exoplanets outside of our solar system, NASA is reporting the number of identified exoplanets has passed the 5,000 mark.
What Happened: On March 21, 65 newly confirmed exoplanets were added to the NASA Exoplanet Archive. According to NASA, no two exoplanets are alike — some are small and rocky worlds similar to the Earth while others are gas giants much larger than Jupiter. There are also planets shown to orbit two stars at once and others maintain orbits around the remains of dead stars.