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Entered orbit around 67P at 09:06 UTC on 6 August 2014. On 30 September 2016 mission ended in an attempt to slow land on the comet's surface near a 130 m (425 ft) wide pit called Deir el-Medina. Ariane 5G+ Philae: 2 March 2004: ESA / DLR Germany: 67P/Churyumov–Gerasimenko: Lander Successful: Carried by Rosetta.
Flyby; largest asteroid visited by a spacecraft at the time. 433 Eros: 34 × 11 × 11 (17 km) 1898 NEAR Shoemaker: 1998–2001 landed: landed: 1998 flyby; 2000 orbited (first asteroid studied from orbit); 2001 landing; first asteroid landing, first asteroid orbited by a spacecraft, first near-Earth asteroid (NEA) visited by a spacecraft. 9969 ...
Little is known of what people thought about comets before Aristotle, who observed his eponymous comet, and most of what is known comes secondhand.From cuneiform astronomical tablets, and works by Aristotle, Diodorus Siculus, Seneca, and one attributed to Plutarch but now thought to be Aetius, it is observed that ancient philosophers divided themselves into two main camps.
The JPL mission designers planned multiple launches in each block, to maximize the engineering experience and scientific value of the mission and to assure at least one successful flight. [14] Total research, development, launch, and support costs for the Ranger series of spacecraft (Rangers 1 through 9) was approximately $170 million. [15]
Galileo 's prime mission was a two-year study of the Jovian system, but on March 26, 1993, while it was en route, astronomers Carolyn S. Shoemaker, Eugene M. Shoemaker and David H. Levy discovered fragments of a comet orbiting Jupiter, the remains of a comet that had passed within Jupiter's Roche limit and had been torn apart by tidal forces.
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Circumlunar mission and Earth reentry; technology demonstration to prepare for Chang'e 5 mission [451] Hayabusa2 / MASCOT: 3 December 2014 Asteroid lander and sample return (sample returned 5 December 2020), first asteroid rover [359] [452] [453] PROCYON: 3 December 2014 Comet observer and attempted asteroid flyby (engine failure) [454] DSCOVR ...
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