Is Kepler 452b what we think it is?

This is what is interesting about scientific discovery. Right now, scientists are being honest and saying that they can't be absolutely sure about Kepler 452b but will keep working on it. The methods they have used to determine that something much like a planet the size of earth is passing between the Kepler craft's telescope and the star that it orbits around every 385 days. It is considered to be in the habitable zone of its star (sun) but we do not have the technology yet to know for sure if it has an atmosphere. On top of all this uncertainty, calculations show that even if humans could live on it, it would take 26 million years for a human to get there and we don't have any kind of spacecraft capable of moving that quickly right now. But we pass the knowledge on in the relay race of life, hoping that someone from the Grade 5 class of 2018 will build the spacecraft that can get us there in a reasonable amount of time.

Kepler-452b - Wikipedia

Kepler-452b (sometimes nicknamed Earth 2.0 or Earth's Cousin based on its characteristics; known sometimes as Coruscant by NASA, also known by its Kepler Object of Interest designation KOI-7016.01) is an exoplanet orbiting the Sun-like star Kepler-452 about 1,400 light-years (430 pc) from Earth in the constellation Cygnus.