Space agency officials said Friday they need time to analyse data from the core engine of the unmann...

Scientists hope the satellites will help solve mysteries about how the Moon formed, how the unexplor...

GRAIL's twin spacecraft are tasked for a nine-month mission to explore Earth's nearest neighbour in ...

NASA's twin lunar probes – GRAIL-A and GRAIL-B will fly in tandem orbits around the moon for several...

The two vehicles will undergo four months of final testing and processing in preparation for launch ...

The Grail mission will place two spacecraft into the same orbit around the Moon....

The Gravity Recovery and Interior Laboratory mission will fly twin spacecraft in tandem orbits aroun...