Dimitri Mawet

At Alpha Centauri A, the nearest Sun-like star, Webb briefly picked up a dot called S1 — a planet candidate the size of Jupiter but with a temperature around –20°C. The object hid behind the star — its orbit lasts just 2–3 years, and there’s remarkably little dust around.

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