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Showing posts with label asteroids. Show all posts
Showing posts with label asteroids. Show all posts

Tuesday, December 29, 2009

The Cure for Space Burnout--Remember Why You're Here in the First Place

It’s not pretty, and we don’t like to admit it, but job/career burnout can happen in any line of work, even careers we’re passionate about. Such things usually happen through overwork, lack of creative control, lack of challenge, or as Dr. OZMG likes to say, “deeper underlying issues.” I’ve had a three-year job adaptation cycle for awhile now, where I spend the first year absorbing the content, the second year kicking arse using that content, and the third year repeating the performance of year two, but usually with a lower level of enthusiasm. My pal D2 reported a similar phenomenon to me, so it’s not unheard-of. The challenge, of course, is what to do if you’re burned out in the literal career of your dreams.

When I worked at Walt Disney World, I went through several three-year cycles, but managed to stay with the same company for 12 years. One of the things I would do just to keep myself happy and motivated was to “renew the wonder.” This would involve something like staying in one of the hotels I hadn’t stayed in before, taking a Disney Cruise, or just hanging out in the parks with no set agenda. My favorite personal recharging is still a walk through Epcot.

It’s a little hard to revisit rocket launches in the space business because they don’t happen very often. In fact, we’re only five missions away from the end of the Space Shuttle Program. That little fact is beginning to creep up on people outside NASA for the first time, and so now normal (i.e. non-space-geek) people like my family, Disney friends, and Dr. OZMG are starting to ask, “You’re closing down the Shuttle? Really? What do we do then?” And if you’ve been in the middle of that debate with little to no influence on the outcome but a whole lot invested in the outcome, you have to ask yourself what you can do to keep your spirits up and avoid the stress of prolonged uncertainty and possible massive changes in your program. In my case, I have to remind myself why I got into this business, what it means in normal-person terms, and what it means to me personally. Below is such an exercise. As usual, these views do not reflect those of NASA, my employer, etc. They are an English major’s view of why the space program matters to him.

The Big Picture

Before I got interested in space as an actual business or line of work, I was a science fiction fan. Science fiction encompasses everything from the space fantasies of Star Trek and Star Wars to the sociological utopias/dystopias of Ursula K. LeGuin and Ray Bradbury to the “hard” science fiction works of Larry Niven, Arthur C. Clarke, and Michael Crichton. Many of these stories depict human beings living, working, and having regular human problems in a future where space travel is not just possible but commonplace. We are nowhere near there yet, but that’s the “vision thing,” as George H. W. Bush might’ve said.

The space advocacy group I belong to, and currently write policy/position papers for, is the National Space Society (NSS). Their vision is “People living and working in communities beyond the Earth.” I dug that. I liked the idea of homes and businesses on the Moon, on Mars, in space stations circling this planet or others. It intrigues me that human beings could explore the moons of Jupiter and Saturn, collect helium 3 from the atmospheres of Neptune and Saturn, and use water-ice objects from the outer solar system to add water to the atmosphere of Mars. It startles and humbles me that I live in an age where objects made by humans have and can leave the solar system. I can’t do any of it, but the dreams are big, and such things appeal to me. If NSS is doing our jobs right, we get those aforementioned normal people to take an interest in the policies and technologies that will make such a future possible.

Technology

It’s not just a matter of zipping around to other planets, making footprints on the sand, and taking pretty pictures for political consumption back home. There have been and continue to be huge benefits from space exploration, direct and indirect, to people on Earth who would never in a million years consider being an engineer or an astronaut. The revolution in miniature integrated circuits—the basis for our computers today—had its birth in data collection for the Saturn V. We can thank the space program for many of our most advanced high-technology medical tools, from the CAT scan and MRI to improved breast screenings and lightweight eyeglasses. Would these advances have occurred if we hadn’t gone into space? Perhaps some, but not most of them. The key to “spinoffs” is what philosopher Gonsalvo Munevar called the serendipity of exploration:

  • You develop a widget that helps a spacecraft (probe) perform a task or survive in a place with no atmosphere, high vibration (upon liftoff), temperature extremes, and strange radiations not encountered on Earth.
  • You work on improving the device, material, process, or technology for future use.
  • You or someone else realizes that the new device—which would never have been invented if it hadn’t been for our crazy desire to explore space—has certain properties that would also be useful for more mundane but equally useful Earth-based purpose.
  • Life is improved on Earth through the new application of the space-based device.

Energy

There are two big gorillas in the medium-term future of space power that deserve to be investigated: space-based solar power (SBSP) and helium-3 fusion.

The idea behind SBSP is that you put a large farm of solar panels—say, one square mile’s worth—into geosynchronous orbit (the sort of orbit where the satellite’s period of revolution around the Earth is exactly one day, so it always stays in one place in the sky). The solar panels collect unfiltered sunlight 24 hours a day—at roughly three times the intensity felt on Earth’s equator on a hot day in spring—and transmit the energy in concentrated form via microwaves to a receiving/rectifying antenna (rectenna) on Earth. The rectenna is plugged into a city’s power grid, and voila! Fewer brownouts, fewer coal-burning power plants, less pollution, fewer hydrocarbons used. I’ve heard arguments against SBSP, but until we invest in one and put it into orbit, we really won’t know. And if we want to continue to have a prosperous, high-technology future, we’re going to need new sources of energy; “green” technologies are all too small to have much impact on our future large-scale needs.

Another potential future energy source would be nuclear fusion using helium-3, an isotope of helium that is more easily fused into other elements without as much hard radiation as a side effect. We’ve been pushing for fusion for over 50 years, and it’s always been “only 20 years away.” Helium-3 is most likely a longer-term energy solution, but again should not be discounted until we at least try it. If we want both a high-technology civilization and an improved environment, space technologies offer two possibilities worth investigating. The long-term energy supply from both of these sources runs into the centuries, not just decades.

Materials

John S. Lewis has postulated that a nickel-iron asteroid a few miles across would be enough to meet the metal needs of our planet for 20 years or more. The reasoning being, these asteroids have a lot more than just nickel and iron (an decent combination for making stainless steel, by the way), including platinum-group metals, and other useful metals, not to mention organic materials (carbon, nitrogen) and water ice, all of which could be used to build things in space or meet our metal-hungry civilization back on Earth. Of course we’d need more routine access to and from space before the cost of hauling in such a treasure trove was possible, but in the meantime, the possibilities asteroids open up for building a civilization in space are very exciting.

Civilization

Raised in the American Midwest as I was, I grew up learning about the Northwest Ordinance, and the six-by-six-mile squares that were parceled out to German and Irish and other European farmers to make the settlement of Ohio, Indiana, Michigan, Illinois, and Wisconsin possible. The government offered up land for sale, and people bought it, promised nothing save the right to make what good use of it they could and the responsibility to pay taxes when they did. The “frontier narrative” speaks to me as a freedom-loving American. It won’t be completely repeatable in space because human-made habitats will be extremely vulnerable—much more so than wagon trains moving across the Great Plains—but space as a place offers the hope of establishing a new life for the very dedicated few.

Education

Exploring and living in space will require our very best efforts. It will take the combined works of many, many smart people to make it so safe that someone who is NOT that smart to live out there without a degree. The specialties cover the range of human civilization to date, from garbage collection to quantum physics. Everything that we do here we will do or try in space. We just have to learn how to do them all over again, and that will take a very unique educational system, very technical and very creative. To make those works possible, we will need people educated people capable of understanding how structures, machines, and people will act in unfamiliar environments. We will need artists and musicians and yes, even writers to be out there eventually to convey the views of people living away from the blue-green-brown-white ball we call Earth and taking their best shot at the meaning of it all. If expanding our civilization into space is our long-range goal, then our educational systems must rise to meet the challenge. Just developing the curriculum for that would be the work of several lifetimes—but how rewarding, if successful!

Summary

So there you go: I want it all. I want a thriving, bustling, free civilization in space. I want to see great works of art and architecture. I want to see risk-taking, new experiments in freedom, an expanding pie of economic growth, cheap and plentiful energy and materials for a combative world. And I believe space exploration can make such things possible. However, it is very easy to get wrapped around the axle with the current politics or arguments of the day: where do we go first? What rockets do we build? What do we spend money on, how much do we spend, and who spends it? Should we send robots or humans? How far should we go to prevent pollution of the space environment?

Space is as much a philosophical as it is a technical adventure, as America was to the Europeans 500 years ago. What lessons might we learn today that we didn’t learn then? That is the reason I stay in this gig: I want to learn—and maybe even contribute—some of those answers.

Wednesday, October 07, 2009

Well, That's A Relief

For those of you worried about an asteroid-induced Apocalypse, at least one asteroid has been moved down the list as an imminent threat. Here's the story from NASA:

Oct. 7, 2009

Dwayne Brown
Headquarters, Washington
202-358-1726
dwayne.c.brown@nasa.gov

DC Agle

Jet Propulsion Laboratory, Pasadena, Calif.
818-393-9011
agle@jpl.nasa.gov
RELEASE: 09-232
NASA REFINES ASTEROID APOPHIS' PATH TOWARD EARTH

PASADENA, Calif. -- Using updated information, NASA scientists have recalculated the path of a large asteroid. The refined path indicates a significantly reduced likelihood of a hazardous encounter with Earth in 2036. The Apophis asteroid is approximately the size of two-and-a-half football fields. The new data were documented by near-Earth object scientists Steve Chesley and Paul Chodas at NASA's Jet Propulsion Laboratory in Pasadena, Calif.

They will present their updated findings at a meeting of the American Astronomical Society's Division for Planetary Sciences in Puerto Rico on Oct. 8. "Apophis has been one of those celestial bodies that has captured the public's interest since it was discovered in 2004," said Chesley. "Updated computational techniques and newly available data indicate the probability of an Earth encounter on April 13, 2036, for Apophis has dropped from one-in-45,000 to about four-in-a million."

A majority of the data that enabled the updated orbit of Apophis came from observations Dave Tholen and collaborators at the University of Hawaii's Institute for Astronomy in Manoa made. Tholen pored over hundreds of previously unreleased images of the night sky made with the University of Hawaii's 88-inch telescope, located near the summit of Mauna Kea. Tholen made improved measurements of the asteroid's position in the images, enabling him to provide Chesley and Chodas with new data sets more precise than previous measures for Apophis.

Measurements from the Steward Observatory's 90-inch Bok telescope on Kitt Peak in Arizona and the Arecibo Observatory on the island of Puerto Rico also were used in Chesley's calculations. The information provided a more accurate glimpse of Apophis' orbit well into the latter part of this century. Among the findings is another close encounter by the asteroid with Earth in 2068 with chance of impact currently at approximately three-in-a-million. As with earlier orbital estimates where Earth impacts in 2029 and 2036 could not initially be ruled out due to the need for additional data, it is expected that the 2068 encounter will diminish in probability as more information about Apophis is acquired.

Initially, Apophis was thought to have a 2.7 percent chance of impacting Earth in 2029. Additional observations of the asteriod ruled out any possibility of an impact in 2029. However, the asteroid is expected to make a record-setting -- but harmless -- close approach to Earth on Friday, April 13, 2029, when it comes no closer than 18,300 miles above Earth's surface. "The refined orbital determination further reinforces that Apophis is an asteroid we can look to as an opportunity for exciting science and not something that should be feared," said Don Yeomans, manager of the Near-Earth Object Program Office at JPL. "The public can follow along as we continue to study Apophis and other near-Earth objects by visiting us on our AsteroidWatch Web site and by following us on the @AsteroidWatch Twitter feed."

The science of predicting asteroid orbits is based on a physical model of the solar system which includes the gravitational influence of the sun, moon, other planets and the three largest asteroids. NASA detects and tracks asteroids and comets passing close to Earth using both ground and space-based telescopes. The Near Earth-Object Observations Program, commonly called "Spaceguard," discovers these objects, characterizes a subset of them and plots their orbits to determine if any could be potentially hazardous to our planet.

JPL manages the Near-Earth Object Program Office for NASA's Science Mission Directorate in Washington. Cornell University operates the Arecibo Observatory under a cooperative agreement with the National Science Foundation in Arlington, Va.

For more information about asteroids and near-Earth objects, visit: http://www.jpl.nasa.gov/asteroidwatch

Thursday, July 30, 2009

Potpourri LXXXIII

Moving right along...

WFTV in Orlando covers job loss issues at Kennedy Space Center.

Brother Karl's dad is at Oshkosh and managed to get a decent pic of WhiteKnightTwo.



Darlene the Science Cheerleader is promoting the Future City competition, which encourages kids to think about technology and social issues in a real-world environment. I attended this competition last year and was suitably impressed with the kids' ingenuity. This year's task/theme is "Providing An Affordable Living Space For People Who Have Lost Their Home Due to a Disaster or Financial Emergency." This could be handled very simply, in my mind: coffin/capsule hotels brought in on semi-trailers. They're very tiny, limited in their drain on the environment, and tiny/uncomfortable enough that people will get themselves out of them and off the government dole as soon as possible just to get on with their lives. Just sayin'.

The Futures Channel has another video out on the Ares Projects.

Fred Thompson has an interview with Betsy McCoy, a patient advocate who provided much of the ammunition to bring down the Clinton nationalized healthcare plan.

The Cash for Clunkers deal has a hitch--some deals have been stopped because the EPA changed the gas mileage rules, effectively preventing some people with "clunkers" from getting their check. This sort of thing would never happen if the government ran the healthcare system, of course.

In the midst of the Augustine Panel swirl, the Mars Society is holding its annual citizen-lobbying blitz to press for Mars exploration.

Florida Today reviews yesterday's Augustine Panel discussion.

More on The Swirl and other topics from Melissa:

Even more on Augustine... http://news.yahoo.com/s/ap/20090729/ap_on_sc/us_nasa_future

This one from the Down Under Defense Expert (DUDE). Ick: http://www.breitbart.com/article.php?id=D99OAQ2G1&show_article=1

Some intriguing links from Jerry Pournelle's site:

  • NASA's Jet Propulsion Laboratory has an Asteroid Watch blog.
  • A case against climate hysteria. Speaking of which, members of the American Chemical Society are revolting against the call for immediate action on global warming. Also, a summary of the one-sided spending on climate research.
  • Some potential for thorium reactors: a long speech and the PowerPoint presentation that goes with it.
  • A reminder on Pournelle's Iron Law of Bureaucracy.
  • A model of a battleship based on Orion (the nuclear pulse rocket, not the crew exploration vehicle).
  • Green engineering within the Air Force.
  • North Korea using its developmentally challenged children as test subjects. Sick. However, this story does come from Al-Jazeera...not sure why I should believe anything these guys say now when I've been more than dubious about things they've said so far.
  • And lastly, an illustrated poem about the Moon.

Wednesday, July 22, 2009

Potpourri LXXVIII

Worked late last night, so I have a little time now to catch up on the news...or at least post some links to it.

First, a little music to start your day, courtesy of Hu.

Also from Hu:
  • Hillary Clinton says the U.S. is prepared to take "crippling action" against Iran if it doesn't rein in its nuclear weapons program.
  • The new NASA chief would be disappointed if he doesn't see human beings set foot on Mars in his lifetime. He wouldn't be the only one.
  • Ka-BOOM! Astronomers see evidence that a large object has smacked into Jupiter. The last time we saw something like this was in 1994, during another Apollo 11 anniversary. As fellow space geek Greg Allison asked me, "Think someone's trying to send us a message?"
  • And as Hu reminded me, "sometimes when you're tilting at windmills it's better not to listen to the 'mainstream'."
I got a note from the NASA PAO feed that the last scheduled firing test of the Space Shuttle Main Engine will be conducted at Stennis Space Center on July 29 of this year. The retirement's real, people.

From R2D2, a variety of wine reviewing sites:
Gadzooks! Never realized all those were out there...

From Melissa: a very cool link from the JFK library that includes a computerized animation of the Apollo 11 launch.

From Father Dan, a cool site featuring rare U.S. military aircraft.

I just think this is frickin' great. Partly because it’s Star Wars, partly because it’s ‘80s music, and partly because it’s frickin’ stupid.

Speaking of Apollo 11 again, President Obama did meet with the three astronauts...as well he should!


Need to buy a Lutheran Worship hymnal? My pastor referred me here. I've become his PowerPoint guy for services--he feeds me the templates and the hymn numbers, lessons, etc., and I put 'em together so folks can follow along. Sometimes page numbers are missing, so I was struggling through, trying to guess where a certain psalm was located. "Perhaps you want to invest in a hymnal?" was his suggestion. Whups. That'll teach me...

Wednesday, May 20, 2009

Potpourri XLIV

Okay, first things first: e-niece Morgan started her bone marrow transplant today. Her mom says she continues to be a "trooper," which fits with what you'll read on her blog. Morgan also has a Skype account (Morgan6261), if you'd like to send good wishes. Here's Dar's update:

Update on Morgan: last bout of radiation is taking place now. Handling all this very well. Skyping, eating like a piggy, laughing (between pukes). I haven't seen her bc she's in intense germ-protection-mode.

Later this afternoon, she will be given, in essence, new life. Bone marrow will be injected into her broviac (semi permanent, umbilical-cord-looking tubes). Painless transplant.We watch and wait...in about 10 days, she should start to react. In about 12 days, we should see signs of acceptance or rejection. We pray for:

  • Acceptance
  • NO viruses
  • NO relapse.

Keep those good vibes coming up here to Philly!

Dar also added:

Bone marrow transplantees celebrate the big day as their birthdays.
Morgan will adopt this donor's stem cells (she will take on his/her T-cells which didn't match her own.) Wild, isn't it?

Wild indeed. That's some scary stuff for an 8-year-old (or any-year-old) to go through. Your good vibes and prayers, of course, are welcome. The doctors use what wisdom they have, and we leave the rest to God.

*

Onto the usual foolishness.

There's a report from NASA that says an early asteroid bombardment of the Earth (~4 billion years ago) didn't inhibit, but improved the success of life on Earth. If that logic were true, shouldn't we get up into space and whack the planet with a few big rocks to improve our biodiversity? I'm kidding, you understand, but this hypothesis doesn't sound right to me somehow.

Tip o' the fedora to Tim B. for finding this: some of my more cynical peers think this is really how space projects are funded. If that were true, we'd have listened to Curtis LeMay and would have a nuclear weapons base on the Moon by now.

Here's an interesting site: The Institute for the Future (IFTF):

The Institute for the Future (IFTF) is an independent, nonprofit research group with over 40 years of forecasting experience. The core of our work is identifying emerging trends and discontinuities that will transform global society and the global marketplace. We provide insights into business strategy, design process, innovation, and social dilemmas. Our research generates the foresight needed to create insights that lead to action. Our research spans a broad territory of deeply transformative trends, from health and health care to technology, the workplace, and human identity. The Institute for the Future is located in Palo Alto, CA.

New from Hu:

  • President Obama and Charlie Bolden have spoken, but there's no word yet that he's Obama's official appointee to the NASA Administrator spot. Why the caution, I wonder?
  • After 100 years of silk-scarved glory, it looks like the age of the fighter jock is nearly over.
  • Satellite imagery is being used to fight the war on drugs.
  • Ahmadenijad is claiming that Iran has tested a new long-range missile. Oh, goody.
  • It's about time to upgrade the nation's global positioning system. Who's going to launch them? SpaceX or some other private-sector provider, one hopes.

I told my buddy Doc that I was contemplating shifting from a PC to a Mac, NOT because I've "seen the light" or joined the Cult of Mac. I'm just sick of all the translation problems that occur when a PC-generated document that I create has hiccups and burps when it moves back and forth between my machine and the Macs in the graphic design shop. Doc offered some insights on what I might need, including this site.

And Jerry Pournelle has some skeptical thoughts on the global warming movement and the economy--they are related more closely than just paying more for gasoline.

Oh, wait! The first trailer for the "V" remake is out there, and I've got to admit, it looks pretty cool.



Does anyone else sense a little Obama paranoia in this trailer, though, or is it just me?