Neptune’s ’dark spots’ spied by Hubble

New time-lapsed Hubble Space Telescope imagery of Neptune shows two giant dark spots on the planet. These vortices are “high-pressure systems that can form at mid-latitudes and may then migrate toward the equator,“ according to NASA and the Space Telescope Science Institute. -- Planet Neptune: Facts About Its Orbit, Moons & Rings: Credit: | footage courtesy: NASA, ESA, M.H. Wong (University of California, Berkeley), a