Comparisons

Compare planets.

Side-by-side comparisons of bodies that look similar at first glance and turn out to be wildly different. Or vice versa.

Mars vs Earth Earth and Mars are often compared because they are the two outermost terrestrial planets in our system, similar in axial tilt and …
Jupiter vs Saturn Jupiter and Saturn are the two gas giants of the solar system, similar in composition and structure but different in mass, moons, …
Uranus vs Neptune Uranus and Neptune are the two ice giants — physically similar in mass, radius, and chemistry, but different in colour, internal h…
Sun vs Jupiter Jupiter is the largest planet in the solar system, but how close is it to being a star? The answer comes down to mass, fusion, and…
Sun vs Earth The Sun dwarfs Earth in every dimension. It is 109 times wider, 333,000 times more massive, and contains 99.86% of all the mass in…
Jupiter vs Earth Jupiter is by far the largest planet in the solar system, and Earth is the largest of the rocky planets. The size gap between them…
Mars vs Venus Mars and Venus bracket Earth on either side, both in the inner solar system, both broadly similar in starting conditions four bill…
Mercury vs Pluto Mercury is the smallest planet in the solar system. Pluto is the largest dwarf planet. Both are small, both are cold (Pluto everyw…