New Hampshire Astronomical SocietyJuly 18th in Astronomy and Space Science
 | 1965 | USSR Zond 3 spacecraft launched. Enroute to Mars, it sends back 25 photographs of the far side of the Moon during a communications test. However, no data was returned from Mars. |
 | 1994 | Fragment G, the largest of the pieces of comet Shoemaker-Levy 9, impacts Jupiter with a force of 6,000,000 megatons. A fireball 3000 km (1900 miles) high is thrown into space and the surface is left with a dark scar larger than the entire Earth. |
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