Though there are literally countless more in theory, NASA has officially detected over 5,000 planets outside our solar system. | IGN

Comet 3I/ATLAS is the third known object from outside our solar system to be discovered passing through our neighborhood. ☄ Track its current and future position using our "Eyes on the Solar System" interactive. Here it is passing near Mars in October: go.nasa.gov/4goaV2t All about Comet 3I/ATLAS and NASA's ongoing observations: science.nasa.gov/solar-system/comets/3i-atlas/ | NASA Solar System Exploration