Could Earth's mantle once have resembled Mars' 'lumpy' interior?

The researchers' findings were based on seismic readings from NASA’s InSight lander on Mars.

Scientists were able to identify 8 Martian quakes with strong enough seismic activity that allowed them to identify fragments of impacts from 4.5 billion years ago.

But because of Mars' unique lack of tectonic plates, the remains of these impacts are still preserved in the form of lumps in Mars' mantle that are as large as 2.5 miles across.

Seismic activity on – unsurprisingly called Marsquakes instead of Earthquakes – has allowed scientists to draw some conclusions about the rocky material that makes up the planet's distinctive "lumpy" interior.

These giant lumps scattered throughout Mars' mantle are likely the remnants of ancient rocks colliding into the planet, according to NASA.

The resear