Planetary scientists recently simulated an alternate version of our solar system: one with a super-Earth causing climate chaos on Earth, Mars and Venus.
One of the most common types of planets in our galaxy are worlds larger than Earth, but not quite as massive as Neptune. These super-Earths, as they're called, are nearly everywhere we look in the Milky Way — except, oddly enough, in our own solar system. However, according to Florida Institute of Technology planetary scientists Emily Simpson and Howard Chen, it's no surprise that we're sitting in a cosmic neighborhood without one of these planets.
