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…