The coming together of a bright planet with a thin crescent Moon is an event well worth seeing, even if you have to set the alarm clock for an early wake up.
Forget about Mercury’s evening appearance in the first half of this month – it is its morning apparition towards the end of October and into November that is the cause of celebration.
Using data from NASA’s Gravity Recovery and Interior Laboratory (GRAIL), mission scientists have solved a lunar mystery almost as old as the moon itself.