Earlier this week, Saturn gained a whopping 128 new official moons, as the International Astronomical Union recognised discoveries from a team of astronomers led by Edward Ashton at the Academia Sinica in Taiwan. The sixth planet from the Sun now has a grand total of 274 moons, the most of any planet in the Solar System.

Even before the recently announced moons, Saturn had more than anyone could reasonably keep track of. Now, astronomers have announced the confirmation of 128 new moons around Saturn, bringing its total to 274, more moons than those around all the other planets in the solar system combined.

The sheer number of objects suggests scientists will soon have to grapple with what counts as a moon versus what’s just a large rock