Audit says NASA is at ` ` high risk '' of missing the 2017 launch date of deep - space missions . Government Budget Office estimates NASA may need an additional $ 400 million . Buzz Aldrin : After moon , next stop Mars . It says schedule changes or fund diversions could result in increased costs to taxpayers .
Audit says NASA is at ` ` high risk '' of missing the 2017 launch date of deep - space missions . Government Budget Office estimates NASA may need an additional $ 400 million . It says schedule changes or fund diversions could result in increased costs to taxpayers .