article_snippet: Earth’s density is less than 2,200lbs (1,000kg) per cubic metre at the surface, but 28,700 lbs (13,000kg) per cubic metre at the core - 3,960 miles (6,370km) below.
article_snippet: And 2,200 miles (3,500km) from the centre, about half way, there is also a dramatic jump in density near the outer core.
article_snippet: Basically, the way Earth is structured, the gravity increases slightly as you go deeper towards the dense core, to about 110 per cent of Earth surface value, before getting weaker as you move through the core, reaching zero [per cent] at the centre.
article_snippet: But Mr Klotz said previous calculations did not take into account the densities of Earth’s layers.
article_snippet: For example, research has shown that the planet is much denser at the planet centre than at the crust, near the surface.
article_snippet: Using seismic data, Mr Klotz found that Earth’s densiity was less than 2,200lbs (1,000kg) per cubic metre at the surface, but 28,700 lbs (13,000kg) per cubic metre at the core - 3,960 miles (6,370km) below.
article_snippet: And 2,200 miles (3,500km) from the centre, about half way, there is also a dramatic jump in density near the outer core.