Exoplanets – Beyond Our Own Solar System
Exoplanets are planets beyond our own solar system. These planets come in a huge variety of sizes and orbits. Mostly with NASA's Kepler Space Telescope; thousands have been discovered in the past two decades. Scientists believe the universe is still increasing externally. One of at least 100 billion stars in the Milky Way is Sun -a spiral galaxy about 100,000 light-years across and the universe is an enormous area of space which holds all of everything