Good day, all,
Probably the largest and most expensive drivers of science in the US since WWII have been the "Manhattan" project, the Department of Defense, and NASA. One poster wrote that if we want to let India, China, Japan and Korea (others?) research, develop, design and manufacture all new technologies, we should give up human space flight.
All the while, President Obama bewails the state of education in this country, stating specifically that we need to increase enrollment in science and math classes. I know there are many fields to follow besides space exploration, such as chemistry, physics, biology, geology, among the many other "-ologies." To encourage such an increase in science and math enrollment, there must be challenges that are "exciting" to students. Some students might be excited about space science.
Human space exploration IS ALREADY LIMITED IN SCOPE! To explore space in person, life support is necessary, but it's also incredibly expensive. Taking our time, with an "Earth Space Agency," we could manage a colony or presence on Mars. (Mars is probably the friendliest place we could visit in this Solar System.)
Exploration of space is also limited due to distance: to get to the nearest star (one of the Alpha Centauri pair) would take 4.3 years AT LIGHT SPEED. At the velocity to escape Earth orbit (>17,000 mph?), it would take about 1.695 * 10^6 years to get there. That's 1.659 million years. To the closest stars. Not gonna happen.
The most efficient use of NASA's budget are programmable, robotic machines such as Spirit, Opportunity, the Hubble telescope, Cassini Saturn orbiter, the Kepler observatory, the James Webb telescope and other space based instruments that will soon be in LEO or in use beyond LEO. The Mars Rovers have lasted far beyond their expected lifetimes. What a bargain those 2 rovers are!
So, should we continue manned space flight? I think so, but we have to work within a framework of cooperation among nations. One reason for this cooperation?
Wars are extremely expensive. We are now fighting in 2 places, one of which we probably would have done better to leave alone.
But former President Bush went to Congress one day demanding an immediate appropriation of $87,000,000,000 for the war effort. And they APPROVED this amount that same day.
NASA's budget last year was around $15,500,000,000. THEY HAD TO FIGHT FOR 6 MONTHS TO GET THAT! Now, I understand we have to take care of the troops, and since we are already there, we have to do our best to resolve the situation. Compared to the Department of Defense budget, NASA's budget is MINISCULE. (7 tenths of 1 percent of the total federal budget in years past.)
Other than losing the 17 astronauts in the Apollo and Shuttle programs, what other harm has the expenditure of monies by NASA caused this nation? NASA has been a source of inspiration for many, and I include myself.
We need to continue investing in NASA, including NASA encouragement of commercial or private launch research.
I apologize for the length of this "post," but I had to include all of this for perspective.
Thank you,
Tom Martin
martints3@yahoo.com