Deep Impact (space mission) | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-05-04

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Deep_Impact_(spacecraft)


00:02:01 1 Scientific goals
00:03:20 2 Spacecraft design and instrumentation
00:07:09 3 Mission profile
00:09:52 4 Mission events
00:10:02 4.1 Before launch
00:11:00 4.2 Launch and commissioning phase
00:13:09 4.3 Cruise phase
00:14:23 4.4 Approach phase
00:16:27 4.5 Impact phase
00:18:35 5 Results
00:22:11 5.1 Crater
00:23:48 6 Public interest
00:23:58 6.1 Media coverage
00:26:35 6.2 Send Your Name To A Comet campaign
00:27:45 6.3 Reaction from China
00:28:46 6.4 Contributions from amateur astronomers
00:30:22 6.5 Musical tribute
00:31:51 7 Extended mission
00:32:19 7.1 Comet Boethin plan
00:33:58 7.2 Flyby of Comet Hartley 2
00:35:17 7.3 Comet Garradd (C/2009 P1)
00:36:26 7.4 Possible mission to asteroid (163249) 2002 GT
00:37:23 7.5 Comet C/2012 S1 (ISON)
00:37:45 7.6 Contact lost and end of mission
00:39:50 8 See also



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SUMMARY
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Deep Impact was a NASA space probe launched from Cape Canaveral Air Force Station on January 12, 2005. It was designed to study the interior composition of the comet Tempel 1 (9P/Tempel), by releasing an impactor into the comet. At 05:52 UTC on July 4, 2005, the Impactor successfully collided with the comet's nucleus. The impact excavated debris from the interior of the nucleus, forming an impact crater. Photographs taken by the spacecraft showed the comet to be more dusty and less icy than had been expected. The impact generated an unexpectedly large and bright dust cloud, obscuring the view of the impact crater.
Previous space missions to comets, such as Giotto, Deep Space 1, and Stardust, were fly-by missions. These missions were able to photograph and examine only the surfaces of cometary nuclei, and even then from considerable distances. The Deep Impact mission was the first to eject material from a comet's surface, and the mission garnered considerable publicity from the media, international scientists, and amateur astronomers alike.
Upon the completion of its primary mission, proposals were made to further utilize the spacecraft. Consequently, Deep Impact flew by Earth on December 31, 2007 on its way to an extended mission, designated EPOXI, with a dual purpose to study extrasolar planets and comet Hartley 2 (103P/Hartley). Communication was unexpectedly lost in September 2013 while the craft was heading for another asteroid flyby.