Researchers have discovered something anomalous underneath the surface of the moon.
Our own Moon has one of the largest preserved craters in the Solar System, the South Pole-Aitken Basin, located on the far side of the satellite. The area is at the center of many investigations, with various orbiters and even the Chinese lander Chang’e-4 studying the region. Now, researchers have discovered something anomalous underneath its surface.
Planetary scientists have discovered a structure that weighs 2.18 billion billion kilograms and stretches for more than 300 kilometers (186 miles) in depth. As reported in the journal Geophysical Research Letters, the team suggests the mass might be from the asteroid that formed the crater.
"Imagine taking a pile of metal five times larger than the Big Island of Hawaii and burying it underground. That's roughly how much unexpected mass we detected," lead author Peter B. James, from Baylor University, said in a statement.