... Curiosity Self Portrait Panorama . ... How would you change the course of an Earth-threatening asteroid? ... Mercury on the Horizon . ... Because Mercury orbits so close to the Sun, it never wanders far from the Sun in Earth's sky. ... Asteroid 2012 DA14 Passes the Earth . ... Shadows Across Jupiter . ... On another Valentine's Day (February 14, 1990), cruising four billion miles from the Sun, the Voyager 1 spacecraft looked back to make this first ever family portrait of our Solar System. ...