Simply put, no. Right now, it takes around 36 pounds of fuel to get a single pound of trash into space. While it might be possible to reduce the amount of fuel, even cutting it in half would be difficult.

While I'm not sure of the current price of rocket fuel (it's not something you can buy at your local gas station), it's certainly much more expensive the gasoline. Sending a single pound of trash would cost thousands of dollars.

Sending the 468 billion pounds of garbage generated in 2000 would take trillions of pounds of fuel, and tens of trillions of dollars (and that's a conservative estimate). There's not enough fuel on the earth to send our garbage into space, and it would be far too costly to try. Almost anything is cheaper and more efficient that sending garbage into the sun, and this will continue in the future.
Source(s):
http://science.howstuffworks.com/rocket2.htm
http://74.125.47.132/search?q=cache:btUOF7P3xpkJ:education.ti.com/education...


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