Jean-Baptiste Ruffio

Measurements of 32 celestial bodies revealed that giant planets spin almost at the brink of tearing apart because their gaseous cocoon barely slowed them down in their youth. Brown dwarfs, on the contrary, lost spin due to a denser disk. Moreover, planets don't depend on proximity to a star, while c

A third giant planet has been found around Beta Pictoris—not in an image, but through chemical traces in light: methane, water, and carbon monoxide. It is 2–4 times more massive than Jupiter and sits so far out that a year there lasts over a century. Its gravity shapes the inner edge of the dusty di