Here's why:

* Kepler-62e is an exoplanet: This means it's a planet outside our solar system.

* Detecting moons around exoplanets is extremely difficult: Current technology is not advanced enough to directly observe moons around exoplanets like Kepler-62e.

While scientists have indirect methods to look for exomoons, these methods are still under development and have yet to be successfully applied to confirm moons around Kepler-62e or many other exoplanets.