Washington - President Barack Obama Monday ditched US plans to return to the moon and hitched Nasa's future to private industry in a budget calling for the space agency to stay close to Earth and do research.
In budget proposals for Nasa, Obama proposed increasing funding for the space agency to $6bn over five years.
But he proposed dropping the massively over-budget program to develop a new-generation rocket called Constellation, put in place by former president George W. Bush and which had been aimed at taking Americans back to the moon.
Citing a report issued last year by a commission set up to review the US space program, the White House said Constellation was not only too costly but also used outdated technology and would not be ready to ferry humans to the moon before 2028.
Instead, the United States was "launching a bold and ambitious new space initiative that invests in American ingenuity to propel us on a new journey of innovation and discovery.
"This new effort will enable our nation to explore new worlds, develop more innovative technologies, foster new industries, strengthen international partnerships, and increase our understanding of the earth, our solar system, and the universe beyond," the White House and Nasa said in a joint statement.
The Obama administration's plans for Nasa call for "a fundamental re-baselining" of the space agency, including fresh "new investment in innovations for space technology, and new ways of doing business".
A key new way to do business would be to get private industry to build the space vehicles that take humans to the International Space Station (ISS), while Nasa concentrates on research and development.
<Congress has to approve Obama's budget proposals and plans for Nasa, and some on Capitol Hill were already railing Monday at the president's proposal to ax the Constellation rocket program.
Senator Richard Shelby, the top Republican on a committee that oversees funding for NASA, said Obama's budget proposal had set manned US space flight on a "death march".
"The cancellation of the Constellation program and the end of human space flight does represent change - but it is certainly not the change I believe in," Shelby said in a play on Obama's 2008 campaign slogan.
But Nasa officials insisted that scrapping Constellation did not mean an end to US ambitions to resume manned space flight or even to return to the moon.
"This isn't a step backwards," said Jim Kohlenberger, chief-of-staff at the White House office of science and technology policy.
"The step backwards was trying to recreate moon landings of 40 years ago largely using some of yesterday's technology instead of game-changing new technology that can take us further, faster and more affordably into space."
In his budget, Obama proposes to increase funding for Nasa by $6bn over five years, bringing the space agency's budget up to $19bn in fiscal year 2011, compared to $18.7bn this year.
- AFP