The Hubble and Kepler space telescopes found evidence for what could be a giant moon accompanying a gas-giant planet that orbits the star Kepler-1625, located 8,000 light-years away in the constellation Cygnus. News release: https://go.nasa.gov/2yc4sCY
The moon may be as big as Neptune and it orbits a planet several times more massive than Jupiter.
Credit: NASA’s Goddard Space Flight Center/Katrina Jackson
Music Credits:
"Momentum" by Guillaume Bernard [SACEM]; KTSA Publishing SACEM; Gum Tapes; Killer Tracks Production Music
"Continental Drift" by Estelle Treville [SACEM], Pascal Marius [SACEM]; KTSA Publishing SACEM; Gum Tapes; Killer Tracks Production Music
Find the science paper at http://advances.sciencemag.org/content/4/10/eaav1784
Visuals are also available at https://go.nasa.gov/2OanZP2