These are the types of stars around which you would expect to find habitable zones and planets that could develop life.

If we can understand the origin of the sharp outer edge around HD 139664, we might better understand the history of our solar system.

The story of how you make a ring around a planet could be the same as the story of making rings around a star.

These are the oldest debris disks seen in reflected light, and are important because they show what the Kuiper Belt might look like from the outside. These are the types of stars around which you...