A European-Japanese spacecraft has beamed back some of the best close-up photos yet of ... mathematician who contributed to NASA's Mariner 10 mission to Mercury in the 1970s and, two decades ...

New photos, shared by NASA, show the four astronauts being welcomed at the Johnson Space Center’s Ellington Field in Houston following the successful splashdown. But one photo of Ms Williams ...

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 ...