Devon Island Expedition

Devon Island Expedition
This blog features educational updates on my Devon Island Expedition of July 14-20, 2007. Other sites: spaceref.com/blogs/earthclassroom, www.marsonearth.org

Wednesday, February 20, 2008

Back in Japan


I am back in Japan doing some work with my good friends at Japan Manned Space Systems. They are a supporting contractor for the Japanese Space Agency, doing work on operations, planning and commercialization. I've known these folks for fifteen years now, since they supported my first Space Shuttle Mission, STS-65 the Second International Microgravity Laboratory.

Leroy Chiao

Thursday, February 14, 2008

US to Shoot Down Derelict Satellite


Wow. I read the news today about the decision by the US to shoot down a derelict reconaissance satellite, sometime in the next week. This strikes me as very odd. The story is that this satellite is going to re-enter the Earth's atmosphere soon and we cannot predict with sufficient accuracy where the large pieces will fall. Included in the expected debris, might be hydrazine fuel tanks which could land with hydrazine still in them.

While this is a legitimate concern, I must wonder about the decision to shoot it down. This action could actually make the situation worse, since we can't predict the trajectories of the pieces once the satellite is broken up. We might actually send debris back up into orbit which could threaten other objects. Or, we may cause pieces to hit areas of the Earth that they would not have, if we had done nothing. That is, we might divert debris onto populated areas that otherwise would not have been affected.

Could it be a political statement? Last year about this time, the Chinese tested an anti-satellite weapon (ASAT) and successfully shot down one of their own aging satellites. This caused international outrage and complaints about the creation of more orbital debris. Why did China do it? Maybe it was a response to the US space policy which had just been released. In this policy, the US stated that we would deny access to space to powers that we deemed a threat. Could the Chinese test been a nose-thumb at us?

Enter today's decision. Could our derelict satellite be a target of opportunity to send a message back to the Chinese?

I hope for better relations between the two countries in the future. It is only through cooperation that we can achieve better understanding.

What do you think?

Leroy Chiao

Monday, February 11, 2008

Why I Love Teaching


I just finished giving my first lecture of the semester here at LSU! I love the interaction with the students and having to prepare lectures (which makes one really learn or re-learn the topic).

I suppose that I always wanted to be a Professor. It was my second career choice after being an astronaut. I remember in graduate school how rewarding it was to give presentations that students understood and appreciated. I guess I also remembered the awful professors and teaching assistants that I sometimes endured. This experience made me dedicated to presenting quality products to my students.

It's important to keep perspective on what's important and to remember what bothered you.

Leroy Chiao

Monday, January 14, 2008

USA Weekend Magazine


Wow! I was just honored with a cover story in last Sunday's USA Weekend Magazine!

http://www.usaweekend.com/08_issues/080113/080113astronauts.html


21st-century pioneer

Astronaut Leroy Chiao achieved his ambition for adventures in space. Now he's trying to open the skies to his fellow dreamers back on Earth.

By Mike Hammer


"I was 8 when I knew what I wanted to do with my life."

The wind whipped 7-year-old Sandy Chiao's hair as she stood nervously atop an imposing pile of sand, strapped into an elaborate hang glider designed by her 12-year-old brother, Leroy.

He had slaved over the homemade flying machine and had high hopes for the mission. When he commanded his little sister to run and leap into the air, they both were confident she would soar into the heavens. After all, Leroy was so good at constructing model planes.

Then came the crash.

"It was OK," Sandy recalls, four decades later. "I didn't get hurt. Besides, it was an adventure."

It was the first of many -- and one of the few failures -- for Sandy's exceptional big brother. Since then, Leroy Chiao's preoccupation with the heavens has led to his becoming a leading member of two of the most elite and exclusive groups on Earth: NASA astronauts and, now, one of many pioneers in the frontier of commercial space flight. If he has his way, flying to the moon will be as common for our kids as hopping a flight to Grandma's.


BRINGING SPACE TRAVEL DOWN TO EARTH

The tug to explore beyond our physical boundaries seems intrinsic, a race to space that transcends nations and is rooted deep in our DNA. This new quest to bring space travel down to earth, so to speak, so that anyone can book a flight to the stars has captured the imagination of a new generation of private entrepreneurs.

In many ways, the ambitious Chiao exemplifies this handful of dreamers determined to commercialize space. The most famous is British billionaire Richard Branson, who is selling $200,000 seats to space in 2009 (see box, next page).

At the same time, Chiao is unique. As a first-generation American whose parents fled China for Taiwan in 1949 on the roofs of speeding trains and in fishing boats, he may not seem the obvious modern-day version of the legendary Wright brothers. But as a highly experienced former astronaut, he has one of the most impressive rŽsumŽs in the history of space travel -- as well as a populist notion of space travel.

"We are on the edge of the barn-storming era of space flight," says Chiao, 47, who lives in Houston with his wife, Karen, and their 13-month-old twins. "There are several companies racing to make commercial space travel a reality sooner than most people think."

Chiao's fantastic voyage really dates back to the mid-1950s, a few years before he was born, when his parents came to the United States to study. When he was 7, the family settled in Danville, Calif., a mostly white community where the Chiaos wanted their children to be fully American in their day-to-day lives but culturally Chinese at home. "I always told them, 'We want to have the best blend of American and Chinese,' " says Chiao's father, Tsu Tao.

The young Chiao found a model for his lofty aspirations in 1969, when he watched Neil Armstrong step on the moon. "I was 8, and I knew what I wanted to do with my life," Chiao says. Soon after, "he made his own rocket," says his mother, Cherry Chu. "It had wheels, so it was really more of a go-cart. He always gave the neighborhood kids rides on it."

Too small to excel in many sports, he focused on academics and his goal of becoming an astronaut. The hard work paid off when he was accepted at the University at California, Berkeley. "I had to hit the books hard and took abuse from the other guys for not partying enough," he says. "I told one friend that I wanted to be an astronaut, and he teased me by joking about wanting to be a policeman, firefighter or Indian chief."

Years later, after he applied at NASA and landed an interview in 1989, Chiao waited four months for a decision, only to learn he had not been accepted. "I was disappointed," he recalls. "I had a couple of drinks. The next morning, NASA called again and indicated there had been some kind of mix-up and invited me to join the 1990 astronaut class. That woke me up in a hurry. I almost didn't believe it!"

In his astronaut class, at age 29, he exuded confidence, a colleague recalls. "He walked in the door and announced that he wanted to do a space walk," says former astronaut Don Thomas, a crewmate on Chiao's first shuttle mission, the 1994 Columbia shuttle. Two shuttle missions later, he had distinguished himself so greatly that NASA asked him to fly with Russian cosmonauts and command a six-month mission on the International Space Station in 2004.


LEAVING THE MOTHER SHIP

The Space Station flight was his last mission. After President Bush signed the Commercial Space Launch Amendments Act in December 2004, intended to promote the development of U.S. commercial space flight, Chiao felt the challenge: He decided to move from astronaut to space entrepreneur.

"I had done all I could do in a flying career," he says of his decision to leave the space agency. For Chiao, "the real future of space travel and exploration was in the private sector."

Chiao's Russian experience helped lead him to Excalibur Almaz space company, a private, international space venture planning to operate its own spacecraft and space stations commercially. "We hope people will be able to travel as easily on a spacecraft in the same way they do on an airline," says Chiao, who's in charge of Excalibur Almaz's space operations, which include training potential passengers.

The private sector has long had access to space, however, communication satellites piggybacking on government rockets is a long way from what's hoped for. To date, only five "tourists" have flown to the International Space Station, and they were on Russian, not American, capsules.

Now you can buy a ticket to ride -- for a price
Chiao claims that "in the next few years," Excalibur Almaz will offer week-long flights that deposit tourists at modernized, Russian-designed space stations. His mission is to make sure such journeys are safe and economically efficient. The price of a seat is still up the air.

"We're going to take things further and faster by using proven technology and spacecraft, which will ultimately bring down costs and make space flight available to more people," Chiao insists. "This [is] a chance to enter a new, exciting and growing area that [allows] me to share my amazing experiences with other people."

Fifty years after the first U.S.-launched rocket, commercial space travel takes off.

Fifty years ago, on Jan. 31, America launched its first satellite, Explorer 1. That historic moment in the annals of space travel spurred fantasies that, some day, everyone might have the chance to blast off from Earth.

Now, that opportunity is available -- if you have $40 million to spare. That's the price of a ride to theInternational Space Station in a Russian Soyuz space capsule. (Only a handful of very wealthy people have taken the trip, becoming the world's first "space tourists.")

The rest of us are still dreaming, but affordable space travel is getting closer. In 2004, SpaceShipOne, built by famed aircraft designer Burt Rutan, claimed the$10 million Ansari X Prize for innovation. It is the first commercially built manned craft to reach space.

Now, Virgin Galactic, the company founded by British billionaire Richard Branson that's behind SpaceShipOne, is selling tickets. For only $200,000, you can experience weightlessness, get a view of the Earth from space and, we hope, enjoy one heck of an in-flight meal. Possible departure date: as early as 2009.

Several other companies also are planning spaceship flights, with the cost for passengers expected to be roughly in the same price range.

Of course, a trip that costs as much as a starter home is still far from making space travel available to the masses. More affordable space voyages may be as little as 10 years away, when prices could fall to $30,000, Virgin Galactic's Rutan has estimated. That's about the price of a well-outfitted Toyota Camry. Start saving today.

Mike Hammer is the former editor of "Shock" and "Stuff" magazines. His longest flight involved a layover in Pittsburgh. Cover and cover story photographs of Leroy Chiao by Robert Seale for USA WEEKEND

Leroy Chiao

Wednesday, January 9, 2008

China's Space Activities


China is planning to launch their third manned space mission near the end of this year. They have announced a three-man crew and the mission will feature their first spacewalk. This should be interesting to watch.

In addition, China announced a robust launch schedule for 2008. Research and development continues too. Particularly intriguing is a spaceplane project. Some details were published recently, including this photo.

What do you suppose they are planning for a spaceplane? It's called Shenlong, which means Divine Dragon.

Leroy Chiao

Tuesday, January 1, 2008

NASA Aviation Safety Data Release

NASA has released a redacted version of a database of an anonymous survey of commercial airline pilots and mechanics. There has been controversy over these data, since they were collected three years ago and were not released until now. The original Freedom of Information Act request made by the Associated Press was denied, with the strange justification that release might cause concern among the flying public. Administrator Griffin has publicly stated that "the data are not credible" because it paints a far riskier picture than he feels is realistic.

I am perplexed by all of this. First, any scientist or engineer should know better than to dismiss data based on a personal opinion that they are not realistic. Second, if the data might cause concern, then they should be released and analyzed. Third, I believe that any agency or company should operate in a transparent manner.

I don't think NASA has handled this one very well. Read more about this at: www.nasawatch.com

Leroy Chiao

Thursday, December 13, 2007

ECO Sensors

NASA resisted the urge to launch STS-122 with less than well understood Engine Cut Off sensor anomalies last week. Was this the right thing to do? I think so, it showed courage and good engineering sense to delay the launch and figure out the root cause of the erratic sensor readings.

There are those who argue that we really don't need the ECO sensors in the Space Shuttle system. These sensors shut the main engines down if they detect an impending fuel depletion before planned Main Engine Cutoff (MECO). If the main engines were not cut off and allowed to run the fuel tanks dry, an explosion would almost certainly result, with a catastrophic loss of vehicle and crew. The argument is that the burn and fuel loading calculations are precise enough that such a situation could not happen realistically.

On the other hand, we have data that appear to indicate that we have come close to such events in the past.

In light of this uncertainty, I think NASA made the right call. What do you think?

Leroy Chiao