Two ‘super-puff’ planets lighter than cotton candy have been discovered by scientists—and they’re bigger than Jupiter.

Two newly confirmed "super-puff" planets are so diffuse that they are less dense than cotton candy, despite being about the size of Jupiter. Their rare orbital relationship and enormous, lightweight ...

A pair of giant planets circling a star more than 1,100 light-years from Earth looks almost too bloated to be real. Each ...