More than 1,235 exoplanets await exploration outside the solar system, according to scientists who operate NASA's Kepler space telescope . This graph, created by Jasson Rowe of NASA's Ames Research Center, shows the identified stars ordered by size, with transiting exoplanets ahead of them. As a size reference we can see our sun in the second row with Jupiter and Earth passing in front of the sphere. Of the exoplanets, 68 are similar in size to Earth, 288 are super-Earths, 662 are similar in size to Jupiter, and 19 are larger than Jupiter.
Fifty-four of the planets are located in the so-called Goldilocks zone , that is, the ring around a star in which the flow of stellar energy allows a planet's land surface to remain at the right temperature for water to exist in. liquid state.
