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Entries in spaceflight (3)

Monday

01Feb2010

Our goal must be Exploration

Monday, February 1, 2010 at 9:07PM

It's no secret that I have been a space enthusiast/geek/dreamer since I was a teenager. At the age of 13 my boyhood dream was to be among the first to see the Red Planet with my own eyes. Since that time I've followed NASA's efforts, their triumphs and at times deep tragedies, I've always remained adamant that the ultimate goal of humanity should be to expand our civilization beyond our home and I believe Mars is the next logical choice.

February 1 marks seven years since the tragic events of the Columbia disaster. It also marks the day when what is now several long weeks of debate, anxious waiting and wondering about the details of President Obama's plans for the future of America's human space flight efforts have come to an end. Despite being an avid space fan for most of my life I have found it hard to find a voice with regards to all the rumors of what the Obama plan may or may not do/fund/cut/etc. While struggling to find the words to consolidate my thoughts on the matter I thought it best to wait until the real announcement had been made. Today we have some answers and it seems, I must admit discouragingly, that they do not differ drastically from what has been leaking out over the last week or so.

I am puzzled by the manner in which this new plan was rolled out. Initially we had been told the NASA Administrator Charlie Bolden would hold a live press conference at NASA Headquarters. Over the weekend that was hastily changed to a conference call for reporters. Well by now there are numerous summary stories outlining things but essentially it boils down to what we had been hearing, Constellation (NASA's replacement for the Shuttle) has been canceled (despite rumblings from Congress I have to think that today will probably represent the end for Constellation) and the focus of NASA will shift to: ISS expansion through 2020, championing efforts for commercial crew launch providers, earth sciences, robotic missions, and aeronautic projects. Additional work on things like propulsion technology, yet more study of human physiology in space, and work on a new heavy lift vehicle were skirted around in vagaries.

"A clear destination."

Like much of the human space flight community what all of this may ultimately mean is swirling around as an ocean of thoughts in my head. What keeps bubbling to the top as my biggest concern with this new plan is the lack of any real goal or clearly defined mission/destination. Throughout the nineties and indeed after the Columbia disaster we were told that the big problem with NASA was that there was no clear mission no ultimate goal. The merits can be debated but for all that Constellation was or wasn't it was a clear destination. It was a line in the sand to work towards.

As best as I can tell the Obama plan offers no insight into the issue of what our end goal might be. We're told that perhaps in time we will develop the technologies to take on and tackle bigger more ambitious missions. However I've not seen any indication of what that timeline might be and what ends for thes potentially newly developed means might be. What will drive that research if we have no guidance on what those missions will be? It is very hard not to feel like we've been here before and we are going to be once again confined to low-earth-orbit feeling around in the dark for some glimmer of light.

It isn't that I don't believe that efforts like earth sciences, and encouraging a commercial space industry aren't valid or even very important, they absolutely are. However what worries me with regards to these announcements and the usual dialogue around commercial space efforts is that there is a focus on things like tourism or LEO transport and very little talk of exploration.

One of the primary definitions of exploration is "the investigation of unknown regions" I can't help but feel like after 50 years we should know low earth orbit reasonably well. Whatever happens, hardware and programs aside, it is my strongest deepest belief that we must continue to have a clear plan for reaching beyond LEO and to a destination that allows us to expand our civilization beyond this planet, push ourselves to the limits, and to live up to that human desire to truly be explorers.

"Too hard."

Another thing that really gets me going are suggestions that some how Mars is too hard, or beyond our reach with current understanding and technology. Witness the comments of NASA Administrator Charlie Bolden below speaking in Israel.

"We’ve got a lot of work to do before we can responsibly send humans to Mars. The biggest thing, the biggest challenge right now, there are two big challenges, one is propulsion and propulsion is a challenge because of the biggest challenge, which is radiation. We don’t completely understand the radiation environment between here and Mars but we know it’s bad. And we suspect, based on past experience and the limited data that we have, that if we put humans into a normal spacecraft now and have them embark on an 8-month one-way mission to Mars they’re going to die unless we spend a lot of money and a lot of metal on tremendous shielding for the vehicle. We know that.

“So, we cannot responsibly put humans in a spacecraft and say next year we’re going to send them to Mars. Can we conquer that? can we overcome that? Yes we can. I don’t know how long it is going to take.” (Source)

Who are we to say this is too hard? Quite literally when we committed to landing humans on the Moon we barely had a handle on how to launch to Earth ORBIT! For all we knew the lunar lander would touch down and sink into the sandy surface of the Moon. More over why not let the humans who will make the journey decide whether they are willing to accept the risk? I'd wager that if you put out the call you'd find a number far in excess of any crew compliment of people willing to go even on a one way journey. I don't think the problem is a lack of creative solutions to these problems or the ability to find them it is the lack of the will to do so in the aggressive tradition of Apollo.

More than that though I think this kind of rhetoric is damaging to our culture and to one of NASA's newly prescribed missions, to encourage kids to pursue careers in engineering, science, math, etc. What message does this send? We'll do something that's hard but only after we've spent multiple lifetimes analyzing the dangers? Should 13 year old me temper his dreams of visiting Mars because there are too many unknowns involved?

This is directly counter to the American tradition of exploration and the "can do" attitude not only America but NASA has stood for. I would wager that we probably know more about what we will find when we get to Mars and what we will find on the journey than Lewis and Clark did when they started west into their unknown. What would American history look like if they had chosen to study every possible permutation of wagon design for sixty some years before embarking?

When we set out for the moon we had less computing power than my car does today in the Apollo modules and we had no idea what-so-ever how to put a square peg (the Command Module CO2 scrubber) into a round hole (the Lunar Module CO2 scrubber) but we figured it out and we are the better for it. If we're saying we're not only not willing but flat out incapable of tackling that challenge today then I don't think it is at all unreasonable to wonder what have the last 50 years meant? What stewards are we of the memories of those who have given their lives in the name of tackling those challenges?

"Hindsight."

It is interesting that as all of this has come about I have once again picked up the book "Deke!", Deke Slayton's autobiography. I wanted to pick it up again because when I was watching some of the Columbia memorial footage I was struck by Bob Crippen mentioning that he was at Kennedy Space Center when Columbia arrived escorted by Deke Slayton in a T38. I forget at times that Deke was involved in the development of the Shuttle as well of course as virtually all aspects of our space program that came before. I'm currently working my way through his discussions of the Apollo and lunar programs. There are casual mentions of the "Apollo Applications Program" as a framework for what the Apollo hardware might have been used for after the initial lunar missions wound down.

I need to pause here and say that I grew up with the Shuttle, I have nothing but respect for the amazing vehicle it is and has been. If it were up to me we would keep flying the Shuttle for as long as we fly the ISS it doesn't make sense, in my view, to extend the ISS and cripple it by eliminating the additional capabilities the Shuttle represents. I also have tremendous respect for the Shuttle workforce, more so now than ever as a result of my interactions with the Space Tweep Society. It will be hard to watch as the program winds down after all it's the program I grew up with, it was the Hubble missions that really truly inspired me to be as passionate as I am about human space flight.

Hindsight is 20/20 and I'm not an expert on the decision making process that lead to us abandoning Apollo in entirety and going with the Shuttle. It is my understanding that it was originally intended that they were to compliment one another, the Shuttle for example as I've heard it was hoped to be ready in time to boost Skylab to a higher orbit. A part of me imagines the alternate universe were this was born out. Where we kept the Apollo hardware in place and maintained the heavy-lift capabilities of the Saturn V. Apollo seems like it was a versatile architecture with capability for LEO, Lunar missions, a space station, and as a heavy-lift perhaps even Mars. Indeed Von Braun himself dared to dream a program that had humans on Mars by 1982!!

"Wake-Up"

My hope for the future comes from the fact that there has been progress in the last fifty years. There has never been more ways to communicate and the Internet has brought a community of hundreds, if not thousands, of passionate space enthusiasts, and stakeholders together. People are passionate about the belief that we do need to expand into the stars and are represented online by countless groups, organizations, and efforts.

If this group is able to mobilize then I am hopeful that for perhaps the first time our direction in space might be determined by, in the best traditions of democracy, the people. I believe the the online community could serve as a powerful catalyst but I truly believe that even the more mainstream audience takes pride in our space program and in the Shuttle and our Astronauts.

When the Shuttle program comes to an end soon I believe America as a nation will be dealt a stiff wake-up call and the general public will start to ask why we have allowed the state of affairs to devolve to the point where the first and only country to land humans on another terrestrial body no longer even has the ability to launch its citizens into space.

Have I agreed with him on every point? No. But the words of George W. Bush in the aftermath of Columbia ring as true to me on this matter as any I've heard and I truly believe they're not just lofty rhetoric but an imperative and absolute…

"This cause of exploration and discovery is not an option we choose, it is a desire written in the human heart."

Justin |

"New Adventures" for Hubble and Manned Spaceflight

Tuesday, May 19, 2009 at 3:38PM

Those who know me, or have read more than an entry or two here on this page will know that I've long considered myself a space exploration geek/nerd/advocate and so I would be remiss if I didn't mark today as Hubble was released earlier in the day by the crew of STS-125 and Shuttle Atlantis. I shared my thoughts earlier in the week on the significance and uniqueness of this particular shuttle mission.

One thing that struck me watching yesterday as the final EVA from the shuttle airlock ever was concluded was that this is really the end of an era for the shuttle program. Aside from traveling to a space station the shuttle was really designed to do the type of work performed on this mission to capture and service satellites in orbit. With the end of STS-125 also comes the end of one of the shuttle's primary roles. Part of the nostalgia for me is that during my lifetime NASA and the American manned space program has always meant one thing: the Space Shuttle. When I went to space camp we trained in shuttle simulators it's always just been there, much the way the space station is for the current generation. It is weird to think that the shuttle will soon be nothing more than a museum piece or worse yet a planter for weeds in some storage yard.

I was preparing to write a longer entry with my own thoughts on the mission but then as EVA #5 (the last EVA in service of Hubble, some video highlights of the EVA.) wound to a close Astronaut John Grunsfeld radioed down these words while floating just outside the shuttle's airlock, I found them personally moving and inspiring and so I share them and echo them as far more eloquent than I might hope to produce.

Outside the airlock hatch, John Grunsfeld said, "This is a really tremendous adventure that we’ve been on, a very challenging mission. Hubble isn’t just a satellite- it’s about humanity’s quest for knowledge."

He also thanked several people who contributed to Hubble and the servicing mission, then went on to say,

"A tour de force of tools and human ingenuity. On this mission in particular, the only way of finding the limits of the possible is by going beyond them into the impossible. On this mission, we tried some things that some people said were impossible….We’ve achieved that, and we wish Hubble the very best. It’s really a sign of the great country that we live in that we’re able to do things like this on a marvelous spaceship, like space shuttle Atlantis. I’m convinced that if we can solve problems, like repairing Hubble, getting into space, doing the servicing we do, travelling 17,500 mph around the Earth, we can achieve other great things, like solving the energy problems and climate problems- all of the things that are in the middle of NASA’s prime and core values. As Drew and I go into the airlock, I want to wish Hubble its own set of adventures and with the new instruments that we’ve installed that it may unlock further mysteries of the universe."

Godspeed to Atlantis, her crew, the entire space shuttle fleet, and of course Hubble!

Justin |

Manned Spaceflight: My Advice for Obama Team

Tuesday, January 13, 2009 at 10:47PM

Regardless of your opinion on whether we should or should not persue manned spaceflight as a national goal there is no denying that it is a period of immense transition and perhaps uncertainty for the future of manned spaceflight. The same could be said for many of our national priorities and chalked up to the normal realignment that occurs when two administrations pass quietly (or not so quietly) in the night. However in the case of NASA and the nation's manned spaceflight system a period of transition and change, in a scope not seen since perhaps the Apollo to Shuttle transition, is already underway.

For those who aren't familiar after the Columbia accident in 2003 President Bush set out a new course for NASA. NASA was directed to start preparing to do two things in terms of manned spaceflight. One, begin preparing to decommission the remaining shuttle fleet by 2010. Two, begin developing a new launch system capable of meeting the requirements of the space station, keeping the astronauts safe, and traveling to the moon and eventually Mars. It is worth noting that President Bush is to be commended to listening to many of the space policy experts hear who for a long time have generally agreed that post-Apollo the United States has been stuck in Low Earth Orbit (LEO).

As a result of the back to the moon goal NASA began developing the Shuttle replacement, a craft that would eventually become known as Orion, part of the Constellation program or launch system. This transition in itself would be an ambitions undertaking even without the intense scrutiny placed on NASA in the post-Columbia era and a presidential transition as well. In principle the Ares Launch Vehicles use a launch platform similar, derived from really, to the Shuttle Solid Rocket Boosters, obviously using similar technology and processes should help NASA leverage the knowledge base it developed launching shuttles for the last 30 years. The crew vehicle draws heavily on older era Apollo capsule designs, something the Russians have used in the Soyuz program with great success for decades. It's of course easy to argue in hindsight that NASA perhaps should have stuck with the versatile Apollo platform but that could easily be another post entirely. Of course the Constellation program has come under fire from both internal and external critics.

In addition to general criticism the Obama transition team has been crawling through the program and giving mixed signals, ostensibly under the pre-text of "exploring all options." There is also recent news that a "rouge" group of engineers has met with the Obama team to pitch an alternative launch system that uses "off the shelf" Shuttle SRBs and External Tanks, known as the "Jupiter Direct" design. Add to this that the current administrator of NASA, Michael Griffin, has announced his resignation. Several reports emerged that Griffin, a adamant proponent of the Constellation program, and Obama officials were butting heads. Rumors have surfaced as well that Obama NASA transition officials appear to favor using military rockets as the launch platform for some, presumably scaled down, capsule based spacecraft. There was also a report recently that the transition team has been looking into the idea of some how merging military and civilian space efforts into some kind of join effort. This report shines in a new light as a result of today's report that Obama has decided to appoint a former Air Force General to head NASA.

What has come out from the Obama transition on NASA is interesting on a few fronts. There have been reports that they favor the idea of using military or commercial launch vehicles and then "human rating" them. There has also been talk that they have started running the numbers for additional shuttle flights beyond the current 2010 end date. The question is what does all of this mean? Well I can't see how either piece of news is particularly good for any future Moon/Mars exploration programs. Moon and Mars missions require some kind of heavy-lift-vehicle (think Saturn V), which the U.S. currently doesn't have. Extending shuttle flights, which would delay Constellation development, or scraping Constellation for military rockets casts very serious doubt on the commitment of the Obama administration to funding the development of an HLV. No HLV essentially means no Moon and no Mars which means the U.S. is once again effectively stranded in LEO.

Recently Obama asked for advice, so here goes. What would I do if I could wave some kind of space policy wand? Well the first thing is I would increase NASA budget and keep the Shuttle flying until whenever the next launch system was ready and flight capable. It just seems wrong to me that the United States, a country born of the frontier's womb, would cut itself off from the biggest frontier of all. The next thing I'd do is I would appoint Robert Zubrin as NASA administrator, with a few stipulations. Those being that we need to maintain the valuable work NASA does in terms of earth science, and deep space exploration. We'd continue a presence on the International Space Station but it would cease to be the focus of manned U.S. efforts. We then immediately focus the manned space program on implementing Zubrin's Mars Direct program as laid out in "The Case for Mars." The HLV capability for this mission could be developed from Shuttle components, perhaps ala "Jupiter Direct". The key thing here is that this plan is MARS Direct, there's no real reason to pit stop on the moon, been there done that lifeless rock. Target for a booted foot in the Martian soil would be approximately 2017 but no later than 2020. An additional mission would be planned shortly after to establish a full-time outpost on Mars with the goal of a full colonization program ramping up as we approach the mid-century mark of 2050.

Of course there would be great outcry at such an ambitious program in the face of an economic recession, two wars, etc. However it seems to me that if ever the world needed something to unify it now is the time. American needs a rallying cry and I'm sorry but service and renewable energy, while worthy goals, will never capture the imagination like looking up at a reddish pin prick in the sky and knowing that humans are have left the cradle. One needs only to look back to the Apollo 11 moon landing for validation of this point. In addition we've stagnated and the frontier can once again jump start an era of incredible innovation the likes of which we can't even dream about.

Perhaps the most compelling reason though is that with each passing year we're not on Mars my goal of retiring to a small homestead over looking Valles Marines becomes just slightly less achievable :-D

Justin |