Kepler-419b is a planet that is located outside of our own solar system. Imagine that you have a lot of friends, but they all live in different houses. Kepler-419b is like a friend's house that is really far away from yours.
Kepler-419b orbits a star, which is like the sun in our solar system. The star is called Kepler-419, and it's very hot and bright. Kepler-419b is also really hot because it's really close to the star. It's so hot that nothing could live there, not even a plant.
Scientists who study space and planets are really interested in Kepler-419b because it's what we call a "transiting" planet. This means that it passes in front of its star, and we can see the star's light getting dimmer. It's like if you stood in front of a flashlight beam and the light got weaker.
By watching the star's light, scientists can learn a lot about Kepler-419b. They can figure out how big it is, how fast it's moving, and what it's made of. This helps them understand how planets like Kepler-419b form and whether or not there could be life on them.
So while Kepler-419b may be too hot for us, it's still a really cool planet to learn about!