Despite cost overruns, the James Webb Space Telescope, which is scheduled to replace the heralded Hubble, should still fly, plead NASA officials and leading astronomers.

Initially, the telecsope's estimated cost was approximately $1 billion and it was scheduled to be launched in 2008. After several delays, the latest estimate is now just under $9 billion and completion has been pushed to 2018, putting the project's future in question.

In July, the House Appropriations Committee released the fiscal year 2012 Commerce, Justice and Science Appropriations Bill, which allotted an annual funding of $50.2 billion to the Department of Commerce, the Department of Justice, the National Aeronautics and Space Administration, the National Science Foundation and related agencies. In a move to restrain spending, it cut the appropriation by 6 percent from fiscal 2011.

Congress must make tough decisions to cut programs where necessary to give priority to programs with broad national reach that have the most benefit to the American people, House Appropriations Chairman Hal Rogers, R-Ky., said at the time.

The move, backed by the House Science, Space and Technology Committee, scrapped the behind-schedule, over-budget  telescope.

But later, the Democratic-controlled Senate Commerce, Justice and Science Appropriations subcommittee allocated $530 million for the project out of a total NASA budget of $17.9 billion.

The bill provides funds to enable a 2018 launch of the James Webb Space Telescope, the subcommittee stated.

The move was expected as the chairwoman of the panel, Sen. Barbara Mikulski, D-Md., has long been in support of reviving the project, which is based in her state, at NASA's Goddard Space Flight Center in Greenbelt, Md. But Mikulski urged NASA to be more responsible in executing the project and provide a report from NASA senior management, ensuring that the NASA has gotten its act together in managing the telescope. 

The latest markup is just a first step toward saving the telescope. The allocation would need approval from the full Senate Appropriations Committee, passage by the Senate and negotiations with the House. 

According to Rick Howard, the telescope's program director, NASA has also recognized its past mistakes and now knows that this is our last chance to do this right.

Meanwhile, the James Webb Space Telescope has reached a milestone as the coating process is completed at Quantum Coating Inc. in Moorestown, N.J.

The telescope has 21 mirrors coated with a microscopically thin layer of gold that enables them to properly reflect infrared light to observatory's instruments. This allows observation of distant and blurred objects using infrared light. Its mission would be to find the first galaxies that were formed in the earliest universe.