Why is the earth bigger than Mars?

Mars is about 10 percent of the Earth's total mass, and this is a feature that puzzles many researchers, as the standard model of planetary growth, known as accretion, predicts that the Red Planet should be much larger than it really is. It's.

Essentially, the growth process shows that rocks incorporate other rocks, which form mountains, and so on. This is the known format that works well for Earth and Venus but cannot be applied correctly to Mars.

Now, thanks to a new training model, scientists believe they have found the reason for this difference. The new theory states that planets form from miniature shapes known as "pebbles" that emerge from dust particles. These pebbles form asteroid-sized objects that after a relatively short period of time can become huge planets.

However, not all asteroids can become planets, as this varies according to their location in the solar system. The region in which Mars finds itself has less drag, which makes capturing other pebbles in space much more difficult, so the planet can never grow larger than Earth. This new theory can also help explain the formation of giants like Jupiter and Saturn.