Has the USA hit its final frontier in human space exploration?, USA Today

"When experts try to read the tea leaves, they're not hopeful about human space exploration in the next decade. "There won't be any," says space policy expert John Logsdon of George Washington University. Instead, he and others suggest, the administration probably will continue support of the International Space Station, which hangs in low-Earth orbit and eats up money that otherwise could send astronauts to the moon, Mars or asteroids. "Clearly, NASA is at a crossroads," says science historian Michael Robinson of the University of Hartford (Conn.). "We are revisiting some questions of a century ago about what we want out of exploration as a nation as we look to space."