Scientists on Friday celebrated the Hubble Space Telescope’s 30th anniversary with a new image of a satellite galaxy of the Milky Way.

In a statement, US space agency NASA said the galaxy in the image — located 163,000 light-years away — away from Earth — and included the giant red nebula NGC 2014, as well as its smaller blue neighbor NGC 2020.

The nebulae are part of a vast star-forming region in the Large Magellanic Cloud, NASA said of the image, which was dubbed the “Cosmic Reef” by astronomers due to its resemblance of an undersea world.

Read more: Hubble telescope celebrates 30th year in space