西安建筑科技大学：《大学英语》课程教学资源（现代大学英语，PPT课件讲稿，第二册）lesson14_background information

Lesson 14-Space Shuttle Challenger Part wo Backgroumd nformation W BT E ENTER

Lesson 14—Space Shuttle Challenger W B T L E Part Two ENTER

Lesson 14-Space Shuttle Challenger Backgroup und Information Conter 工。 Author- William Harwood IL。 Space Shuttle Cha∥ enger Disaster I工L。 Movie clip- challengers Explosion IV. President Regan's Address on Challenger's Explosion W BT E BAC

Lesson 14—Space Shuttle Challenger W B T L E I. Author—William Harwood II. Space Shuttle Challenger Disaster III. Movie Clip—Challenger’s Explosion IV. President Regan’s Address on Challenger’s Explosion Background Information

Lesson 14-Space Shuttle Challenger I. Author Wiliam yarwood As the CBs News space consultant William Harwood has covered Americas space program full time for more than 15 years, focusing on space shuttle operations planetary exploration and astronomy. Based at the Kennedy space Center in Florida, Harwood provides up to-the-minute space reports for CBs News and regularly contributes to Spaceflight Now and The washington Post W BT E The end of author-william Harwood

Lesson 14—Space Shuttle Challenger W B T L E As the CBS News space consultant, William Harwood has covered America’s space program full time for more than 15 years, focusing on space shuttle operations, planetary exploration and astronomy. Based at the Kennedy Space Center in Florida, Harwood provides up￾to-the-minute space reports for CBS News and regularly contributes to Spaceflight Now and The Washington Post. I. Author—William Harwood The end of Author—William Harwood

Lesson 14-Space Shuttle Challenger II. Space Shuttle Challengerdisaster -A NASA Tragedy NASAs Shuttle program was begun in the 1970s, to create reusable craft for transporting cargo into space. Previous space craft could only be used once, then were discarded the first shuttle Columbia was launched in 1981. One year later, the Space Shuttle Challenger rolled off the assembly line as the second shuttle of the US fleet. They were followed by Discovery in 1983 and Atlantis in 1985 The Space Shuttle Challenger flew nine successful missions before that fateful day of the disaster in 1986 W BT E To be continued on the next page

Lesson 14—Space Shuttle Challenger W B T L E NASA’s Shuttle program was begun in the 1970s, to create reusable craft for transporting cargo into space. Previous space craft could only be used once, then were discarded. The first shuttle, Columbia was launched in 1981. One year later, the Space Shuttle Challenger rolled off the assembly line as the second shuttle of the US fleet. They were followed by Discovery in 1983 and Atlantis in 1985. The Space Shuttle Challenger flew nine successful missions before that fateful day of the disaster in 1986. II. Space Shuttle Challenger Disaster To be continued on the next page. —A NASA Tragedy

Lesson 14-Space Shuttle Challenger II. Space Shuttle ChallengerDisaster -A NASA Tragedy Shuttle mission 51L was much like most other missions. The Challenger was scheduled to carry some cargo, the Tracking data Relay satellite-2 (TDRS-2), as well as fly the shuttle-Pointed Tool for Astronomy(SPARTAN-203)/Halley's Comet Experiment Deployable a free-flying module designed to observe tail and coma of Halleys comet with two ultraviolet spectrometers and two cameras W BT E To be continued on the next page

Lesson 14—Space Shuttle Challenger W B T L E Shuttle mission 51L was much like most other missions. The Challenger was scheduled to carry some cargo, the Tracking Data Relay Satellite-2 (TDRS-2), as well as fly the Shuttle-Pointed Tool for Astronomy (SPARTAN-203)/Halley’s Comet Experiment Deployable, a free-flying module designed to observe tail and coma of Halleys comet with two ultraviolet spectrometers and two cameras. II. Space Shuttle Challenger Disaster To be continued on the next page. —A NASA Tragedy

Lesson 14-Space Shuttle Challenger II. Space Shuttle Challengerdisaster -A NASA Tragedy One thing made this mission unique. It was scheduled to be the first flight of a new program called tisp the Teacher In Space program. the Challenger was scheduled to carry sharon Christa Mcauliffe, the first teacher to fly in space Selected from among more than 11,000 applicants from the education profession for entrance into the astronaut ranks mcauliffe was very excited about the opportunity to participate in the space program. I watched the space Age being born and i would like to participate W BT E To be continued on the next page

Lesson 14—Space Shuttle Challenger W B T L E One thing made this mission unique. It was scheduled to be the first flight of a new program called TISP, the Teacher In Space Program. The Challenger was scheduled to carry Sharon Christa McAuliffe, the first teacher to fly in space. Selected from among more than 11,000 applicants from the education profession for entrance into the astronaut ranks, McAuliffe was very excited about the opportunity to participate in the space program. “I watched the Space Age being born and I would like to participate.” II. Space Shuttle Challenger Disaster To be continued on the next page. —A NASA Tragedy

Lesson 14-Space Shuttle Challenger II. Space Shuttle ChallengerDisaster -A NASA Tragedy Besides mcauliffe, the challenger crew consisted of mission commander francis r Scobee, pilot Michael J. Smith; mission specialists Ronald E. McNair, Ellison S. Onizuka, and Judith A. Resnik and payload specialists Gregory b. jarvis. Christa was also listed as a payload specialist. W BT E To be continued on the next page

Lesson 14—Space Shuttle Challenger W B T L E Besides McAuliffe, the Challenger crew consisted of mission commander Francis R. Scobee, pilot Michael J. Smith; mission specialists Ronald E. McNair, Ellison S. Onizuka, and Judith A. Resnik, and payload specialists Gregory B. Jarvis. Christa was also listed as a payload specialist. II. Space Shuttle Challenger Disaster To be continued on the next page. —A NASA Tragedy

Lesson 14-Space Shuttle Challenger II. Space Shuttle challengerdisaster -A NASA Tragedy From the beginning though, shuttle Mission 51L was plagued by problems. Liftoff was initially scheduled from at 3: 43 p.m. EST on January 22, 1986. It slipped to Jan. 23, then Jan. 24, due to delays in mission 61-C and finally reset for Jan. 25 because of bad weather at transoceanic abort landing (TAL) site in Dakar, Senegal The launch was again postponed for one day when launch processing was unable to meet new morning liftoff time. Predicted bad weather at Kennedy Space Center(ksc) caused the launch to be rescheduled for 9: 37 a.m. EST, Jan. 27, but it was delayed another 24 hours when ground servicing equipment hatch closing fixture could not be removed from orbiter hatch W BT E To be continued on the next page

Lesson 14—Space Shuttle Challenger W B T L E From the beginning, though, Shuttle Mission 51L was plagued by problems. Liftoff was initially scheduled from at 3:43 p.m. EST on January 22, 1986. It slipped to Jan. 23, then Jan. 24, due to delays in mission 61-C and finally reset for Jan. 25 because of bad weather at transoceanic abort landing (TAL) site in Dakar, Senegal. The launch was again postponed for one day when launch processing was unable to meet new morning liftoff time. Predicted bad weather at Kennedy Space Center (KSC) caused the launch to be rescheduled for 9:37 a.m. EST, Jan. 27, but it was delayed another 24 hours when ground servicing equipment hatch closing fixture could not be removed from orbiter hatch. II. Space Shuttle Challenger Disaster To be continued on the next page. —A NASA Tragedy

Lesson 14-Space Shuttle Challenger II. Space Shuttle ChallengerDisaster A NASA Tragedy The fixture was sawed off and an attaching bolt drilled out before closeout completed. During this delay, the cross winds exceeded limits at KsCs Shuttle Landing Facility. there was a final delay of two hours when a hardware interface module in the launch processing system, which monitors fire detection system failed during liquid hydrogen tanking procedures. The Challenger finally lifted off at 11: 38: 00 a. m. EST. Seventy three seconds into the mission, the Challenger exploded killing the entire crew W BT E The end of Space Shuttle Challenger Disaster

Lesson 14—Space Shuttle Challenger W B T L E The fixture was sawed off and an attaching bolt drilled out before closeout completed. During this delay, the cross winds exceeded limits at KSC’s Shuttle Landing Facility. There was a final delay of two hours when a hardware interface module in the launch processing system, which monitors fire detection system, failed during liquid hydrogen tanking procedures. The Challenger finally lifted off at 11:38:00 a.m. EST. Seventy three seconds into the mission, the Challenger exploded, killing the entire crew. II. Space Shuttle Challenger Disaster — A NASA Tragedy The end of Space Shuttle Challenger Disaster

Lesson 14-Space Shuttle Challenger III Movie ClipChallenger's sExplosion W BT E The end of Movie Clip-Challenger's Explosion

Lesson 14—Space Shuttle Challenger W B T L E III. Movie Clip—Challenger’s Explosion The end of Movie Clip—Challenger’s Explosion