from the How-many-Falcon-Heavy-launches-would-that-buy? dept.
Congress has given NASA $350 million for a second mobile launcher for the Space Launch System:
The problem stems from the fact that NASA's current mobile launch platform wasn't actually built for the SLS. NASA has been modifying a platform that was originally built for a rocket that never saw the light of day — the Ares 1, a vehicle that was meant to send humans back to the Moon as part of the now-canceled Constellation program. When the Constellation program was replaced with the SLS program in 2011, NASA decided to simply upgrade the mobile launch platform the agency had already built for Ares 1 to support the Space Launch System. The SLS is a much bigger and heavier vehicle than the Ares 1 was going to be, so NASA has had to reinforce the base of the platform, as well as expand it to accommodate the larger size of the rocket and its engines.
[...] Now, Congress is telling NASA to build a second platform, likely due to safety concerns. Building the new platform could potentially move the second flight of SLS up to 2022 instead of 2023. Otherwise, having such a huge gap between the first and second flight of the rocket could cause engineers to forget the valuable experience they gained from flying the rocket the first time. "When that happens, you have all the people — in your ground systems and in mission control — you have them sitting around for months at a time with nothing to do," Casey Dreier, director of space policy at the Planetary Society, tells The Verge. "And in the absence of real rocket launches, you might lose good people."
But another unofficial motivation could be optics. Further delays would be a bad look for the perennially delayed SLS program. The first flight of the SLS has been consistently pushed back — from 2018, to 2019, and then to 2020. And even when the first two flights of the vehicle are done, the rocket will probably only launch once a year.
Lawmakers provided $150 million for the Wide-Field Infrared Survey Telescope, or WFIRST, which the Trump administration proposed canceling last month. Set for launch in the mid-2020s, WFIRST would be next in NASA's line of big observatories in space after Hubble and the James Webb Space Telescope. It was the top priority for NASA's astrophysics program in a National Academy of Sciences decadal survey released in 2010. The agency's policy is to follow cues from the science community encapsulated in the decadal survey reports.
Agency managers last year were wary that WFIRST could exceed its $3.2 billion cost cap, and Thomas Zurbuchen, head of NASA's science directorate, in October ordered a team at the Goddard Space Flight Center in Maryland — home of the WFIRST project office — to study how the mission could be modified to fit under the budget limit.
Officials drafting NASA's budget request for fiscal 2019 decided WFIRST was too expensive, but the mission has enjoyed strong support from Congress. In an apparent reference to WFIRST's proposed termination, lawmakers wrote that they "reject the cancellation of scientific priorities recommended by the National Academy of Sciences decadal survey process."
A Trump administration budget proposal would cancel NASA's flagship-class Wide-Field Infrared Survey Telescope (WFIRST) as well as several Earth science related telescopes, as it focuses on the Space Launch System, Orion, and sending astronauts to an orbital space station around the Moon:
The Trump administration has released its budget proposal for fiscal year 2019 and put dozens of federal programs on the chopping block, including a brand-new NASA space telescope that scientists say would provide the biggest picture of the universe yet, with the same sparkling clarity as the Hubble Space Telescope. The proposal, released Monday, recommends eliminating the Wide-Field Infrared Survey Telescope (WFIRST), citing "higher priorities" at NASA and the cost of the new telescope.
"Given competing priorities at NASA, and budget constraints, developing another large space telescope immediately after completing the $8.8 billion James Webb Space Telescope is not a priority for the administration," the proposal states. "The budget proposes to terminate WFIRST and redirect existing funds to other priorities of the science community, including completed astrophysics missions and research."
Although the Trump administration wants to end funding of the International Space Station (ISS) by 2025, it envisions private companies picking up the slack:
"The decision to end direct federal support for the ISS in 2025 does not imply that the platform itself will be deorbited at that time — it is possible that industry could continue to operate certain elements or capabilities of the ISS as part of a future commercial platform," according to a draft summary of NASA's ISS Transition Report required by Congress in the agency's 2017 Authorization Act.
[The "mobile launcher" component] supports the testing and servicing of the massive SLS rocket, as well as moving it to the launch pad and providing a platform from which it will launch.
According to a new report in NASASpaceflight.com, the expensive tower is "leaning" and "bending." For now, NASA says, the lean is not sufficient enough to require corrective action, but it is developing contingency plans in case the lean angle becomes steeper.
These defects raise concerns about the longevity of the launch tower and increase the likelihood that NASA will seek additional funding to build a second one. In fact, it is entirely possible that the launch tower may serve only for the maiden flight of the SLS rocket in 2020 and then be cast aside. This would represent a significant waste of resources by the space agency.
[...] [From] the tower's inception in 2009, NASA will have spent $912 million on the mobile launcher it may use for just a single launch of the SLS rocket. Moreover, the agency will have required eight years to modify a launch tower it built in two years.
The second mobile launcher, intended for larger versions of the SLS, will cost about $300 million (if not more).
Related: Maiden Flight of the Space Launch System Delayed to 2019
Trump Space Adviser: Mars "Too Ambitious" and SLS is a Strategic National Asset
NASA Opens Door to Possibly Lowering SLS Cost Using Blue Origin's Engines
After the Falcon Heavy Launch, Time to Defund the Space Launch System?
Exploration Mission 2 using the Space Launch System was originally planned to launch using the Block 1B version, which includes the Exploration Upper Stage and can carry 105 metric tons (105,000 kg) to to low-Earth orbit. Now that Congress has given NASA additional money for a second SLS mobile launcher, the agency has the ability to fly astronauts on the smaller Block 1 version of SLS, capable of lifting 70 metric tons to LEO:
The SLS has been in development for the last decade, and when complete, it will be NASA's main rocket for taking astronauts to the Moon and Mars. NASA has long planned to debut the SLS with two crucial test missions. The first flight, called EM-1, will be uncrewed, and it will send the smallest planned version of the rocket on a three-week long trip around the Moon. Three years later, NASA plans to launch a bigger, more powerful version of the rocket around the Moon with a two-person crew — a mission called EM-2.
But now, NASA may delay that rocket upgrade and fly the same small version of the SLS for the crewed flight instead. If that happens, NASA would need to come up with a different type of mission for the crew to do since they won't be riding on the more powerful version of the vehicle. "If EM-2 flies that way, we would have to change the mission profile because we can't do what we could do if we had the [larger SLS]," Robert Lightfoot, NASA's acting administrator, said during a Congressional hearing yesterday [2h15m22s video].
[...] Meanwhile, it's also possible that the second flight of the SLS won't carry crew at all. NASA also needs to launch its upcoming mission to Jupiter's moon Europa pretty soon. Known as Europa Clipper, the mission is mandated by Congress to fly on the SLS by 2022. Lightfoot mentioned that Europa Clipper could come before the first crewed flight of the SLS. It just depends on if the Orion crew capsule, which will carry astronauts on the SLS, is ready before Europa Clipper is ready. If the Europa spacecraft comes first, then it could also fly on the small Block 1 rocket.
The trans-lunar injection (TLI) payload capacity for SLS Block 1B is 39.2 metric tons, enough to carry a ~25.9 ton crewed Orion capsule with an 8-10 ton component of the Lunar Orbital Platform-Gateway (LOP-G), as was the original plan for Exploration Mission 2. Block 1 cannot accomplish these two tasks at the same time. Perhaps they should launch LOP-G using Falcon Heavy instead?
A House appropriations bill released May 8 offers more than $21.5 billion for NASA in fiscal year 2019, a significant increase over both what the agency received in 2018 and what the White House proposed for 2019.
While there is no mention of the Wide-Field Infrared Survey Telescope (WFIRST) or the possibility of raising the James Webb Space Telescope's $8 billion spending cap, there is plenty of money for a Europa mission (a favorite of Rep. John Culberson) and continued development of the Space Launch System (SLS):
The bill, though, does specify funding for some programs. It calls for spending $545 million on the Europa Clipper mission and $195 million for a follow-on lander. NASA requested only $264.7 million for Europa Clipper and nothing for the lander. NASA said in the budget proposal it was seeking to launch Europa Clipper in 2025 on a commercial vehicle, while the bill calls for the use of the Space Launch System and a launch by 2022. In its budget proposal, NASA estimated needing $565 million in 2019 to keep Europa Clipper on track for a 2022 launch but warned of "potential impacts to the rest of the Science portfolio" if funded at that level.
The bill includes $1.35 billion for Orion and $2.15 billion for SLS, the same funding those exploration programs received in 2018. NASA requested slightly less for each: $1.164 billion for Orion and $2.078 billion for SLS. The bill fully funds the administration's request for the Lunar Orbital Platform-Gateway, at $504 million in 2019.
Congress, in the 2018 omnibus spending bill, provided $150 million for WFIRST, which many interpreted as a rebuke to the administration's proposal even though Congress had yet to take up the 2019 budget. However, Congress passed the 2018 omnibus spending bill just days before NASA revealed another delay, and potential cost overrun, for JWST, complicating the future of WFIRST.
As with PACE, work on WFIRST is continuing for 2018 as the appropriations process for 2019 plays out in Congress. The mission's next major review, for Key Decision Point B, is scheduled for May 22, which will allow it go into Phase B of its development.
"We were funded fully through FY '18," said Jeff Kruk, WFIRST project scientist, at the Space Studies Board meeting May 3. "We have to be ready to proceed should Congress decide to continue funding the mission. The only way we will meet the cost cap is if we stay on schedule."
NASA has approved a major astrophysics mission to go into the next phase of its development even as the administration seeks once again to cancel it.
NASA announced March 2 that the Wide Field Infrared Survey Telescope (WFIRST) has passed a review known as Key Decision Point C, which confirms development plans for the mission and allows it to move into full-scale hardware production and testing.
That milestone is when the agency also sets a baseline cost and schedule commitment for the mission. NASA said in its statement about the review that the mission would cost $3.2 billion through its launch, a cost cap previously set by NASA. The cost when including five years of science operations, as well as a coronagraph instrument deemed a technology demonstration by NASA, increases to $3.934 billion.
However, NASA did not announce a launch date for the mission because its fiscal year 2021 budget request proposes to cancel WFIRST. "The Administration is not ready to proceed with another multi-billion-dollar telescope until Webb has been successfully launched and deployed," NASA said in its statement, a reference to the James Webb Space Telescope scheduled for launch in March 2021. NASA used the same statement in its 2021 budget request to explain why it sought no funding for the mission.
Wide Field Infrared Survey Telescope (WFIRST).
WFIRST Space Observatory Could be Scaled Back Due to Costs
Trump Administration Budget Proposal Would Cancel WFIRST
NASA Gets Money it Didn't Ask for to Fund Second SLS Mobile Launcher; WFIRST Mission Receives Funds
Launch of James Webb Space Telescope Delayed Again, This Time to March 2021, Cost at $9.66 Billion
NASA Administrator at House Hearing: WFIRST Could be Delayed to Help Pay for JWST