Sentences with phrase «geologically dead balls»
Before the space age, scientists thought the moons of the outer solar system would be featureless, geologically dead balls of ice.
https://www.scientificamerican.com/ Not exact matches
That suggests that Pluto is not the dead ice ball many people think, but is instead geologically active even now, its surface sculpted not by collisions with cosmic debris but by its internal heat, the scientific team reported.