Bigger Moons Have Moons

Some Are Calling Them 'Moonmoons'
The New Scientist magazine popularised the term, but two astronomers have already named them “Submoons.”

By David Barden

Have you at any point looked up at the night sky, gazed toward the moon and thought about whether it could have its very own moon?

While you most likely haven't, an inquisitive 4-year-old backed in 2015, and on Tuesday, his space expert mother and one of her associate's distributed a paper that basically says: Yes, a moon can have its own moon.

The Carnegie Institution of Washington's Juna Kollmeier AKA "The Junaverse" disclosed to HuffPost that while none of the planets' moons in our close planetary system presently have moons (that we are aware of), "Earth's moon, one of Jupiter's moons and two of Saturn's moons" may all have once had moons.

In any case, the genuine question is: What do you call a moon's moon?

While Kollmeier and stargazer Sean Raymond alluded to them as "submoons" in their paper, the New Scientist has named them "moonmoons."

here is another tweet

“The internet is having a blast with the name which is

• totally unexpected, and
• super fun! People need a little fun,”

Kollmeier said.

“I am not casting my vote before consulting with my son Levi. He was the inspiration for the work and if he likes moonmoon or moonito or whatever, I have to back it!”

source : https://www.huffingtonpost.com/entry/moonmoons-moon-submoons-discovery_us_5bbe8a76e4b054d7ddef6126