Ned Potter is the science correspondent for ABC's "World News with Charles Gibson." He has reported on such topics as space exploration, the human genome and climate change.
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Here Comes the Sun
May 02, 2008 8:05 AM
A lame joke, from the early days of the Moon race, had a comedian/astronaut cheerfully claiming he was going to fly a mission to the Sun.
But it's too hot, the straight man would reply. How will you get there?
Simple, came the answer. We'll go at night.
Groan.
But now, after 30 years of planning and arguing and canceling because it was too hard and too expensive, NASA has finally ordered up a mission that, for now, it calls Solar Probe. It's asked the Johns Hopkins Applied Physics Laboratory to work up a plan for a launch in 2015. The spacecraft will have a carbon-composite heat shield, nine feet in diameter and six inches thick. The Earth is about 93 million miles away from the Sun on average; Solar Probe would be sent within 4.1 million miles.
This is billed as pure science, but in a technology-driven world, engineers want to know more about the charged particles that come flying our way, as solar wind most of the time, and as giant flares -- Coronal Mass Ejections -- when the Sun is especially active. Solar radiation has, on occasion, fried the electronics of satellites, and in 1989 a power blackout in Quebec was attributed to solar activity.
Shield your eyes.
May 2, 2008 | Permalink | Share | User Comments (30)
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Dont believe anything NASA says 99% of what they put out there is pure bs Whatever they do is only to is for thier own greater good Wake up America Make NASA accountabe.
Posted by: awatchman | May 3, 2008 6:46:37 AM
What if it goes wrong and put's the sun out.
As a fundamentalist Christian I believe that NASA is playing god with the Planet Earth. The pursuit of scinece is witchcraft and should be banned, as should all medicines and medical treatments.
Unless of course it is me that needs the treatments.
Posted by: Jasmine Beeth | May 3, 2008 7:11:23 AM
Don't worry, George Bush will cut the funding for this before he leaves office. This money could be much better spent getting people killed in Iraq.
Posted by: Joe | May 3, 2008 8:37:07 PM
Yes, this would be an un-manned probe.
Yes, this will likely force out a number of technological advancements.
Yes, our country need to continue to advance in this arena unless of course we want to become a territory of China.
George Bush has stopped innocent people getting killed on our soil dead in its tracks and confronted our enemy. I appreciate his tendency to action versus inaction. The US turned a blind's eye to Hitler in 1938-39 and it cost 50,000,000 lives, 500,000 of those or so American.
Our country, economy, opportunities and wealth have continued to grow since 2001 because he took the war off our soil.
Watch "MIB 1", scene when K gets in J's face for shooting his cricket in the view of the public.
As you grow older you will understand what I am saying.
Posted by: Ron | May 4, 2008 12:58:12 AM
"...this will give us a better understanding...at a cost of..." Meanwhile, gas prices are going up, so is unemployment, housing prices are dropping, and so many other problems that need our attention and money! After the world has agreed to share, and the objective of all humans is self improvement for the benefit of us all, then we can explore the Sun.
Posted by: Gerald | May 5, 2008 11:15:14 AM
As a fundamentalist Christian I believe that NASA is playing god with the Planet Earth. The pursuit of scinece is witchcraft and should be banned, as should all medicines and medical treatments.
Oh geez I hope this is a joke. Pretty scary
Posted by: Bill | May 5, 2008 11:34:35 AM
Go NASA! Every dime we have ever spent on space has been returned many times over in benefits right here on Earth. This is especially true in medicine but it applies to any field in which engineering plays a part - which includes everything.
Our cars are safer because of light weight, high strength materials originally developed for space flight. Our cell phones have more computing power than the ship and module used for the first Moon landing; again as a direct result of the space program. Our kitchens are safer due to heat resistant materials developed specifically for the space program, and more efficient thanks to thin, light insulating materials from space research.
Nearly everything that involves imaging of any sort came from NASA research (think about CAT scans, sonograms, etc). Likewise everything that involves miniturization of any kind. Look around; things that we all take for granted wouldn't be around without the investments made in space research. The truth is that without the research and development from the space program, our daily lives would be much different. Many of us who have had to undergo serious medical procedures in the last two decades are alive solely because of the advances made by the space program.
So, once again, Go NASA, GO!! I have no idea what new miracles will come from the development of a solar probe, but I have no doubt that they will find uses here on Earth, some hitting the market before the probe even clears the launch pad. And, based on the history of our space program, these new things will benefit us far beyond the cost of the probe mission itself.
Posted by: Walker Evans | May 8, 2008 3:14:58 PM
>>>What if it goes wrong and put's the sun out.
As a fundamentalist Christian I believe that NASA is playing god with the Planet Earth. The pursuit of scinece is witchcraft and should be banned, as should all medicines and medical treatments.
Unless of course it is me that needs the treatments.
>>>>
Funny!
Posted by: bubba | May 9, 2008 3:22:26 PM
The sun is the obvious source for most future power. All the energy from oil came originally from the sun, transferred into life, broken down, and now released. Another source of power rarely discussed is the power generated from the rotation of the earth itself, which can be captured in a variety of ways as the magnetic fields shifts in this rotation ever so slightly every day. Necessity is the mother of invention. Wealth of Nations depends on keeping and importing capital, not exporting it as the US does. We can supply the world with energy if we want to do so, not the other way around.
Posted by: Bonzai55 | May 24, 2008 11:27:12 AM
It will be an interesting exercise in engineering but my understanding is that instruments won't see "through" the heat shield, they'll be on a retractable boom that can take a quick peak around the heat shield and then retract back behind before anything melts down.
Keep in mind the heat shield only has to shield against heat it absorbs, anything reflected doesn't add to the heat budget, so making the heat shield highly reflective would go along way towards making it effective.
I know to some it may seem like a silly waste of money trying to understand that which sustains all life on our planet when we could be killing more people in Iraq. What can you say about priorities?
Posted by: Robert Dinse | May 25, 2008 5:08:45 AM
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