Weird Orbits of Alien Planets May Be Due to Twin Stars
Some of the oddly skewed orbits of many alien worlds may be due to the twin stars they are often found circling, a new study suggests.
In our solar system, the orbits of most planets are nearly circular, orbiting the sun’s equator. However, many of the exoplanets astronomers have discovered in the past two decades or so have mysteriously skewed orbits. They may be eccentric — that is, oval-shaped. They could also be inclined — tilted at an angle from the equators of their stars.