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Robotic Exploration of the Solar System: Part 4: The Modern Era 2004 -2013 QUOTES

Robotic Exploration of the Solar System: Part 4: The Modern Era 2004 -2013 QUOTES

1 " At 05:44:36 UTC the projectile made an oblique impact on the day-side of the comet, striking near the edge of one of the two craters. The release of kinetic energy was equivalent to detonating 4,500 kg of TNT. As a result, the comet was slowed by an estimated 0.0001 m/s and its perihelion distance was reduce by some 10 meters. "

― , Robotic Exploration of the Solar System: Part 4: The Modern Era 2004 -2013

2 " With Juno's launch, Dawn's arrival at Vesta, MESSENGER's arrival at Mercury, the Stardust flyby of Tempel l, and the launches of the Mars Science Laboratory, Fobos-Grunt, and the insertion into lunar orbit of the GRAIL (Gravity Recovery and Interior Laboratory) for the Disocvery program, 2011 was another landmark year for solar system exploration. This was even more remarkable for the fact that, except for the loss of Fobos-Grunt, all of these missions were run by NASA, an agency which had been criticized as having "a great future behind it" as a result of the absence of a clear vision by politicians for manned spaceflight after the retirment of the Space Shuttle. "

― , Robotic Exploration of the Solar System: Part 4: The Modern Era 2004 -2013