Hubble looked at Neptune's dark spot SDS-2015, revealing that the spot which was once big enough to swallow China, rapidly diminished. https://t.co/eOqG1kiYR0
Credit: @NASA , @ESA , and M.H. Wong and A.I. Hsu (UC Berkeley) pic.twitter.com/jljMr5slXd

— HUBBLE (@HUBBLE_space) February 19, 2018