Thanks to an enormous stroke of luck and serendipitous timing, astronomers were able to calculate the mass and distance of a free-floating planet for the first time. Learn more about it.
Multiple studies have linked cellphone use to an increased risk of car accidents. Learn how new research suggests delays in rapid-eye movement when talking might be at least partly to blame.
Learn how ancient DNA from human remains provided the first direct evidence that a common childhood virus has been part of the human genome since the Iron Age.