"What surprised us, at the end, was how effective this type of impact could be in explaining Mercury's unusual structure ...

Its proximity to Earth – about 50 to 70 million kilometers from mid to late April – means we catch more of its light, so it ...

Mercury ' s inner core is solid and about the same size as Earth ' s inner core, a new study using observations from NASA's MESSENGER mission has indicated. Mercury is the smallest planet in our ...