There’s a new object in the distant reaches of our solar system, and it might just offer clues to a long-standing cosmic ...

WD 1856+534b—a freezing world with a surface temperature of -125 degrees Fahrenheit—exists where planets are normally scoured ...

Planet Nine ... of Earth in the outer solar system, but did not actually find a candidate planet. Article continues below The solar system consists of the Sun, our home star, and everything that is ...

A groundbreaking discovery confirmed by NASA surrounding a young star offers new insights into planet formation and the role ...