Uranus looks calm from a distance, but it is one of the strangest planets ever discovered. With a sideways rotation, broken magnetic field, extreme cold, and mysterious history, this ice giant ...

Archaeologists in Italy have unearthed a 2,500-year-old tomb of a pre-Roman warrior prince. This royal burial was found in ...

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 ...

Astronomers have captured some of the most detailed images of debris discs—rings of leftover dust, gas, and rocks that circle a star—from fully formed, "teenage" planetary systems. And those images, ...

Astronomers have found a planetary system that seems to have formed inside-out. While most systems, like our own, have rocky planets closest to their star and gaseous ones further out, the LHS 1903 ...