Astronomers have finally weighed a wandering “rogue” planet, uncovering a Saturn-mass world flung into the galaxy after a ...

Scientists measured mass and distance of free floating planet drifting through space without star for first time.

Stand on solid ground and it feels obvious that “down” points toward the center of the planet and “up” leads to the sky. Yet ...

"The combination of extreme disk size, strong asymmetries, winds, and potential planet formation makes it the perfect ...