NASA probes go into orbit to study Moon’s core

THE second of two NASA lunar probes on a mission to study the Moon’s inner core went into orbit as planned, the US space agency has said.

The second Gravity Recovery and Interior Laboratory (GRAIL-B) will join GRAIL-A which reached lunar orbit on Saturday, according to officials at NASA’s Jet Propulsion Laboratory in Pasadena, California.

Scientists hope the two probes will allow them to better understand the origins of planets.