This small plastic nameplate may not look like much, but it represents a 'transformative moment' in space exploration.
On TV: Personalities
Chris St. Clair
The heated search for Earth-like worlds
Discovering habitable planets is a fiercely competitive field, are we ready for ...
Blizzards for the ages: 6 crazy snowstorms
Incredibly, Buffalo's week from hell didn't qualify as the worst snowfall ever. ...
October 2014 goes down as hottest on record
With yet another month breaking all climate records so far, 2014 is on track to ...