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Video Coverage




The most complete source of video from the countdown, launch and mission of space shuttle Discovery is available here!

Video Collection



The Mission




Orbiter: Discovery
Mission: STS-121
Launch: July 4, 2006
Time: 2:38 p.m. EDT (1838 GMT)
Site: Pad 39B, Kennedy Space Center, Florida
Landing: July 17 @ 9:14 a.m. EDT
Site: Shuttle Landing Facility, KSC
Video collection

Mission Status Center

Landing Day Timeline

Master Flight Plan

NASA TV Schedule

Countdown Timeline

Launch Timeline

Shuttle/ISS Calendar

STS-121 Quick-Look

Launch Windows Chart

Ascent Data Packet

Timeline Walkthrough

Rendezvous Burns

Undocking Timeline

Key Personnel List

STS-121 Mission Index

STS-114 Archive



The Crew




Veteran shuttle commander Steven Lindsey leads a seven-person crew launching aboard Discovery for the STS-121 mission.

Crew Quick-Look

CDR: Steven Lindsey

PLT: Mark Kelly

MS 1: Michael Fossum

MS 2: Lisa M. Nowak

MS 3: Stephanie Wilson

MS 4: Piers Sellers

MS 5: Thomas Reiter

Manned Spaceflights

Current Demographics

Spacewalk Statistics



The Vehicle




As America's third reusable space shuttle to fly, Discovery has successfully completed 31 missions since 1984.

STS-121 Hardware

Launch/Landing Chart

Shuttle Flight History




Safety chief, top engineer discuss shuttle decision
BY WILLIAM HARWOOD
STORY WRITTEN FOR CBS NEWS "SPACE PLACE" & USED WITH PERMISSION
Posted: June 19, 2006

NASA's safety chief and the agency's top engineer said today in a joint statement they did not oppose launching the shuttle Discovery July 1 despite serious concern about so-called ice-frost ramps on the ship's external fuel tank.

Discovery was cleared for launch Saturday after a two-day flight readiness review in which Bryan O'Connor, chief of Safety and Mission Assurance, and the agency's chief engineer, Chris Scolese, voted to delay launch until the ice-frost ramps could be redesigned.

NASA Administrator Mike Griffin said he did not agree that the ice-frost ramp foam posed a "probable/catastrophic" threat to the shuttle and cleared Discovery for flight. A "tiger team" of engineers is working on an ice-frost ramp redesign the agency hopes to implement within a few flights.

Griffin said even if ice-frost ramp foam did cause damage during Discovery's launching, it would not directly threaten the crew. In a worst-case scenario, which he views as extremely unlikely, the astronauts could either attempt repairs or move aboard the space station to await rescue by another shuttle crew.

O'Connor and Scolese said today in a statement that they agreed crew safety was not at issue.

"Crew safety is our first and most important concern," the statement said. "We believe that our crew can safely return from this mission.

"We both feel that there remain issues with the orbiter - there is the potential that foam may come off at time of launch. That's why we feel we should redesign the ice/frost ramp before we fly this mission. We do not feel, however, that these issues are a threat to safe return of the crew.

"We have openly discussed our position in the Flight Readiness Review - open communication is how we work at NASA. The Flight Readiness Review board and the administrator have heard all the different engineering positions, including ours, and have made an informed decision and the agency is accepting this risk with its eyes wide open."

See our earlier story for detailed coverage of Griffin's remarks and the decision to press head with launch on July 1.

Spaceflight Now Plus
Additional coverage for subscribers:
VIDEO: RATIONALE FOR LAUNCH EXPLAINED DIAL-UP | BROADBAND
AUDIO: LISTEN TO EXPLANATION FOR IPOD
VIDEO: CREW TALKS ABOUT RISKS OF SPACEFLIGHT PLAY
VIDEO: ASTRONAUTS DEPART QUARTERS FOR LAUNCH PAD PLAY
VIDEO: CREW DONS LAUNCH AND ENTRY SPACESUITS PLAY
VIDEO: BREAKFAST ON PRACTICE COUNTDOWN DAY PLAY
VIDEO: WEDNESDAY'S PAD CHAT WITH CREW DIAL-UP | BROADBAND
VIDEO: CREW ARRIVES FOR PRACTICE COUNTDOWN PLAY
VIDEO: COMMENTS FROM THE COMMANDER PLAY

VIDEO: SHUTTLE MISSION PREVIEW DIAL-UP | BROADBAND
VIDEO: STATION ACTIVITIES ON STS-121 DIAL-UP | BROADBAND
VIDEO: PREVIEW OF DISCOVERY'S SPACEWALKS DIAL-UP | BROADBAND
VIDEO: THE ASTRONAUTS MEET THE PRESS DIAL-UP | BROADBAND
VIDEO: SHUTTLE AND ISS PROGRAM PERSPECTIVE
      DIAL-UP: part 1 and part 2
      BROADBAND: part 1 and part 2
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