"NASA announced today that its schedule for the first crewed mission of SLS and Orion will slip to 2023; this represents a two year slip from previous plans for the first mission by 2021. The agency announced similar delays last fall. Smith has repeatedly criticized the Obama administration for failure to request adequate funding for Orion and the Space Launch System; the administration's FY16 budget request proposed cuts of more than $440 million for the programs."
OIG Report on SLS/Orion Ground Systems, earlier post
"NASA management noted a risk that the dates planned for SLS and Orion could slip and the GSDO review occur first. Accordingly, NASA should closely monitor the Programs to ensure any such risk is mitigated so as to avoid significant cost increases or schedule delays."
GAO Sees Through NASA's SLS/Orion Smoke and Mirrors, earlier post
"The Orion estimate does not include costs for production, operations, or sustainment of additional crew capsules, despite plans to use and possibly enhance this capsule after 2021. It also does not include $4.7 billion in prior costs incurred during the approximately 4 years when Orion was being developed as part of NASA's now-defunct Constellation program."
SLS Has Problems That Money Alone Will Not Fix, earlier post
"In addition, our ongoing work has found that the three human exploration programs are pursuing inconsistent and unrealistic schedule goals and that the Orion program is facing significant technical and funding issues that may affect NASA's overall schedule for its human exploration programs."
Congress and GAO Have Doubts About SLS Costs, earlier post
"According to the program's risk analysis, however, the agency's current funding plan for SLS may be $400 million short of what the program needs to launch by 2017. ... "Moreover, NASA's estimates do not capture the cost of the second flight of the 70-metric ton vehicle during EM-2, the costs of development work that will be necessary to fly the increased 105- and 130-metric ton SLS capabilities, and the costs associated with legacy hardware that will be used for the Orion program."
Empty Promises On NASA's Road to Mars, earlier post
"Now Charlie Bolden seems to derive a certain amount of happiness by saying "we are no longer 20 years away from Mars". What he is really saying is "Hooray - we now suck less at NASA".
Negative Progress Towards Putting Humans on Mars, earlier post