Mars May Be Hiding a Global Ocean Beneath Its Surface

• New research suggests Mars has enough underground water to form a global ocean.
• Findings are based on seismic data from NASA's Mars InSight lander.
• Water is believed to be 7 to 12 miles deep in the Martian crust.
• This water likely seeped from the surface billions of years ago.
• Confirmation would require drills and other equipment to detect signs of life.

Source: AP