A song titled 'Moon Anthem' by , paralleling the proposals for an , was released 2019 on the occasion of India's lunar probe.
The Moon has a solid iron-rich inner core with a radius possibly as small as 240 kilometres 150 mi and a fluid outer core primarily made of liquid iron with a radius of roughly 300 kilometres 190 mi.
In January 2018 the foundation announced that the prize would go unclaimed as none of the finalist teams would be able to make a launch attempt by the deadline.
It is speculated that these patches were the poles of the Moon billions of years ago before it was tidally locked to Earth.