Share Jupiter’s immense size–about 1,000 Earths could fit inside of it–and its swirling and jiggly Great Red Spot typically get most of the attention. Now, the planet’s northern and southern poles have entered the discussion. A team of astronomers have discovered equally large spots at both poles that appear and disappear seemingly at random. The findings are detailed in a study published November 26 in the journal Nature Astronomy. The dark UV ovals were first detected by NASA’s Hubble Space Telescope during the late 1990s at the north and south…