Mercury is, by far the smallest.
Its average diameter is 4879 km compared to 6792 km for the next smallest, Mars, and compared to 142,984 km for Jupiter.
Pluto is about half the size of Mercury, which is the smallest "true" planet.
Mercury is, by far the smallest.Its average diameter is 4879 km compared to 6792 km for the next smallest, Mars, and compared to 142,984 km for Jupiter.
Because of Earth's size, and considering it as one of the smallest planets, it has a weak gravity compared to the OTHER planets. Most planets have greater gravity because of their size. Earth has a stronger gravity compared to mars, mercury, and venus.
Mars is the second smallest planet. Only Mercury is smaller.
3rd
There are probably several things Mercury has very little of, but compared to the other planets is has very little size/mass and very little distance from the sun.
Compared to some other planets in the same galaxy, yes; it is actually fractions of the size of other planets in this galaxy
Mars is a smaller planet, but not the smallest (mercury). Mars is about fifty percent smaller than our earth. the size of the planet go in the order of Mercury, Mars, Venus, Earth, Neptune ,Uranus, Saturn, and Jupiter.
Mars is the second-smallest major planet (Only Mercury is smaller).Planets in order of size, smallest to largest :MercuryMarsVenusEarthNeptuneUranusSaturnJupiter(see related link)
A very good question, and one that is difficult to prove - However. If we forget about gravitational compression, Mercury is the densest planet in the Solar System. Earth being the most dense at 5.515 g/cm3 whereas Mercury has a density of 5.427 g/cm3 -- So not a lot in it. Current theories suggest that early in the formation of the Solar System, there were a lot more planets orbiting the Sun. Many crashed into other planets - Theia and the creation of the moonis one example, and I'm sure there were others. Mercury had a sister planet of about the same size and mass, but also in the same orbit. Disaster was bound to happen - eventually. When the two planets collided, almost head on, the core of the second planet merged with Mercury and blasted the lighter material into outer space, this was eventually consumed by the Sun or accreted onto other planets. Mercury, now had an incredibly dense core and a "sifting" of lighter materials on it's surface. So Mercury has an incredibly large iron core compared to other planets, and this is why it has such a large density compared to other planets.
large compared to other planets. Third largest planet in our solar system.
Mercury and Venus :)