A confidential report commissioned by NASA has concluded that the space agency's plan to use a robot to save the Hubble telescope is highly risky.
The robot would install two new instruments and replace batteries and gyroscopes.
During its time in service, the Hubble space telescope has taken spectacular images of space, glimpsing deep into the universe.
But the report suggests NASA should let the aging telescope die. It suggests that NASA send up the new instruments on a second, bare-bones telescope. Hear NPR's David Kestenbaum.
The executive summary of the Aerospace Corporation's report categorizes NASA's proposed robotic mission to save Hubble as "high risk."