Today NASA launched two unmanned spacecraft from the Air Force Station from Cape Canaveral in Florida after two days of delay.
The ships, called Grail Grail-A and-B are directed to a point in space 1.5 million kilometers to balance out the gravity of the Sun and Earth carrying two robotic probes to the moon with the hope of discovering what is inside it. The ships are estimated to reach the moon between December 31 and January 1.
They will enter into orbit around the moon and chase in circles. Scientists verify changes in distance between the two spacecraft to measure the gravitational field of the moon.
These sister ships were designed to precisely map the moon’s gravity to help scientists to find out what lies beneath the lunar crust and if the core is solid, liquid, or a combination of both. The mission cost is $ 496 million.