Scale Comparison
Earth is about 5.4 times Pluto’s diameter. Pluto is smaller than several moons, but it remains a geologically varied world.
New Horizons found nitrogen-ice glaciers, layered haze and evidence of active surface processes. Classification and geological complexity are not determined by diameter alone.
Objects
Pluto is an icy dwarf planet with a surprisingly active surface and atmosphere. New Horizons found nitrogen-ice glaciers flowing across its plains and blue hazes in its sky.
Earth is the largest of the four rocky planets and the only world known to host life. Liquid water has covered most of its surface for billions of years, shaping both its geology and its atmosphere.
Continue with another comparison or open the full scale.
About
Scale of Space is a scroll-based journey through the universe, placing objects on a single logarithmic scale so you can compare size across an unbroken range.
Guides explain selected parts of that range, while focused views filter the objects by subject.