Spaceflight Now Home



Spaceflight Now +



Premium video content for our Spaceflight Now Plus subscribers.

Joining tank and SRBs
The space shuttle Discovery is hoisted high into the Vehicle Assembly Building and mated with its external fuel tank and solid rocket boosters.

 Hoisted | Attached

Discovery moves to VAB
Space shuttle Discovery makes an evening move October 31 from its processing hangar to the Vehicle Assembly Building for mating with an external fuel tank and twin solid rocket boosters in preparation for the STS-116 mission.

 Play

Final Hubble servicing
The objectives of the just-approved final Hubble Space Telescope servicing mission are detailed and the anticipated science from the new instruments to be installed are detailed in this briefing from Goddard Space Flight Center.

 Full Coverage

Meet Hubble astronauts
The crew for the final Hubble Space Telescope servicing mission will be led by Scott Altman, with pilot Greg C. Johnson, robot arm operator Megan McArthur and spacewalkers Andrew Feustel, Mike Good, John Grunsfeld and Mike Massimino. The astronauts meet the press in this news briefing from Johnson Space Center.

 Full Coverage

STEREO launch
The twin STEREO space observatories designed to change the way we view the sun launch from Cape Canaveral aboard a Boeing Delta 2 rocket.

 Full Coverage

Become a subscriber
More video



NASA reviews next human spacecraft system
NASA NEWS RELEASE
Posted: November 17, 2006

NASA has completed a milestone first review of all systems for the Orion spacecraft and the Ares I and Ares V rockets. The review brings the agency a step closer to launching the nation's next human space vehicle.

NASA completed the thorough systems requirements review of the Constellation Program this week. Review results provide the foundation for design, development, construction and operation of the rockets and spacecraft necessary to take explorers to Earth orbit, the moon, and eventually to Mars.

"This review is a critical step in making the system a reality," said Constellation Program Manager Jeff Hanley of NASA's Johnson Space Center, Houston. "I am proud of this dedicated and diligent NASA-wide team. We have established the foundation for a safe and strong transportation system and infrastructure. It is a historic first step."

This is the first system requirements review NASA has completed for a human spacecraft system since a review of the space shuttle's development held in October 1972. The Constellation Program system requirements are the product of 12 months of work by a NASA-wide team.

The system requirements review is one in a series of reviews that will occur before NASA and its contractors build the Orion capsule, the Ares launch vehicles, and establish ground and mission operations. The review guidelines narrow the scope and add detail to the system design.

"We are confident these first requirements provide an exceptional framework for the vehicle system," said Chris Hardcastle, Constellation Program systems engineering and integration manager at Johnson. "This team has done a significant amount of analysis which will bear out as we continue with our systems engineering approach and refine our requirements for the next human space transportation system."

An example of the activity was a review and analysis that confirmed the planned Ares I launch system has sufficient thrust to put the Orion spacecraft in orbit. In fact, the Ares I thrust provides a 15 percent margin of performance in addition to the energy needed to put the fully crewed and supplied Orion into orbit for a lunar mission. Engineers established Orion's take off weight for lunar missions at over 61,000 pounds.

Each Constellation project also is preparing for a narrower, project-level systems review, according to the following schedule:

  • Orion crew exploration vehicle, February 2007
  • Ground operations (launch support), February 2007
  • Mission operations (mission support), March 2007
  • Extravehicular activity (space suits), March 2007

Once the project-level reviews are complete, the Constellation Program will hold another full review to reconcile the baseline from this first review with any updates from the project reviews. A lunar architecture systems review of equipment associated with surface exploration and science activities on the moon is expected in the spring of 2009.