
Science fiction is filled with stories of humans traveling to other planets — and, of course, quite often those planets are inhabited. Whether it's explorers having romantic adventures in "Star Trek" or determined scientists trying to save humanity in "Interstellar," people instinctively want to believe that our universe might allow us to casually planet-hop. It is hopeful to believe that we could escape from Earth's problems to a literal new world, and inspiring to think other fascinating life forms might await us either in our solar system or on exoplanets just beyond.
Wolf 1069b is remarkable similar to Earth: It has roughly 1.26 our planet's mass and 1.08 times its size.