The number of planets in our galaxy alone is downright staggeringS

Caltech astronomer John Johnson, co-author of a newly published study on the formation of planetary systems, calls the distribution of planets in our galaxy "mind-boggling." His team's are the latest in a string of predictions that pin the number of planets in the Milky Way at upwards of 100-billion. And these are conservative estimates.

Somehow, "mind-boggling" feels like an understatement.