"NASA's large strategic missions like the Hubble Space Telescope, the Curiosity rover on Mars, and the Terra Earth observation satellite are essential to maintaining the United States' global leadership in space exploration and should continue to be a primary component of a balanced space science program that includes large, medium, and smaller missions, says a new report by the National Academies of Sciences, Engineering, and Medicine. However, controlling the costs of these large missions remains vital in order to preserve the overall stability of the program, the report finds.
In the past, concerns have been raised about NASA's large missions as there has been a history of their costs exceeding original estimates, impacting the overall budget of the agency. The James Webb Space Telescope (JWST) is a recent example of a large mission that experienced substantial cost growth. Big jumps in costs for a mission can have an impact on the entire science program at NASA.
Although cost-evaluation and cost-management mechanisms developed at NASA over the past decade have proved to be effective, NASA should continue to use its various cost estimation and management tools to better assess and control the costs and risks of the missions and ensure they remain a viable option, the report says. The agency should also support the development of new estimation tools to perform robust cost estimates and risk assessment for future missions."
from NASA Watch http://ift.tt/2xvFVXD
via IFTTT
沒有留言:
張貼留言