The video discusses the New Horizons mission's findings on Pluto, revealing unexpected geological activity and atmospheric changes. It highlights the discovery of flowing nitrogen ice and a rapidly thinning atmosphere. The video also covers Kepler's identification of new exoplanets, including Kepler 452B, which shares similarities with Earth but has significant differences. The video concludes with a call to support SciShow on Patreon.

Describe the significance of the new exoplanets discovered by the Kepler Space Telescope.

What potential challenges could arise from colonizing Kepler 452B?