Is the Best Time to Spot Mercury . In the early morning, Mercury will rise before the Sun and hang low in the east close to ...

Our planet's closest and brightest neighbor will pass approximately between the Earth and sun this week, in what's called an inferior conjunction.

Mercury completes its orbit around the sun in only 88 days ... that planet appears to travel backward or be in ‘retrograde’ compared to the stars for a time,” a portion of the report ...

Using data from NASA's MESSENGER spacecraft, scientists have determined that a 10-mile-thick diamond mantle may lie beneath ...