Giant Alien Planet in Supersized Solar System May Solv

Giant Alien Planet in Supersized Solar System May Solve Mystery
SPACE.com
This artist's rendering of the planetary system of HR 8799 130 light-years from Earth as it may have appeared at an early stage in its evolution. The image shows the giant exoplanet HR 8799c, as well as a disk of gas and dust, and interior plan
View Comments