This artist concept based on data found by NASA Spitzer Space Telescope shows upsilon Andromedae b, a hot gas giant that whips around its star every 4.6 days. Because it is so close to its star, it is tidally locked.
This artist concept based on data found by NASA Spitzer Space Telescope shows upsilon Andromedae b, a hot gas giant that whips around its star every 4.6 days. Because it is so close to its star, it is tidally locked.