Humanity's future on the moon: Why Russia, India and other countries are racing to the lunar south pole

A false color image of the lunar south pole, showing areas of lower gravity in purple and higher gravity in red
A gravity map of the moon's south pole, showing regions of lower gravity in purple and higher gravity in red. Many nations are racing to establish a permanent presence here. (Image credit: NASA's Scientific Visualization Studio)

While descending to the moon's surface on July 20, 1969, Apollo 11 astronauts Neil Armstrong and Buzz Aldrin struggled with alarms from an overwhelmed computer and spotty communication with mission control in Houston, where controllers frantically flipped through notes to identify error codes. After enduring a nerve-wracking 13 minutes and overshooting their landing site by 4 miles (6 kilometers), the crew managed to touch down unharmed near the moon's equator with just 15 seconds' worth of fuel left, and radioed home a much-awaited message: "The Eagle has landed."

Between 1969 and 1972, the U.S. landed 12 astronauts on the moon as part of the Apollo program, which was formed primarily to beat the former Soviet Union to the moon in the heat of the Cold War. Now, more than 50 years after the first human landed on the moon, interest is once again surging to visit our celestial neighbor. This time, though, spacefaring nations are eyeing the lunar south pole, which has become a hotspot for both short- and long-term space exploration. 

Related: Scientists map 1,000 feet of hidden 'structures' deep below the dark side of the moon

Why focus on  lunar ? Because there, scientists think countless permanently shadowed areas host abundant deposits of frozen water that could be mined for life support and rocket fuel.