The Hubble Space Telescope captured some weird, unidentified stuff in the most detailed photos ever taken of the immediate space surrounding a quasar.

So what could these things be?

Scientists have suggested at least some of the objects could be small orbiting galaxies on the precipice of falling into the central black hole, which is what’s powering the quasar. All of the objects were found within 16,000 light-years of the black hole.