Hubble Telescope Successor, Could Get a Financial Lifeline
The James Webb Space Telescope (JWST) is perilously overbudget and under threat of cancellation, but Naturehas learned that it may be offered a financial lifeline. The flagship observatory is currently funded entirely through NASA’s science division; now NASA is requesting that more than US$1 billion in extra costs be shared 50:50 with the rest of the agency. The request reflects administrator Charles Bolden’s view, expressed earlier this month, that the telescope is a priority not only for the science programme, but for the entire agency.
NASA expects that the total cost of getting the 6.5-metre telescope to the launch pad by 2018 will be about $8 billion, around $1.5 billion more and three years later than an independent panel predicted in November 2010. Because in the next few years agency budgets are likely to be flat at best, scientists had feared that the JWST would end up swallowing the $1-billion astrophysics budget whole, or at least heavily eroding the $5-billion science-division budget. The new proposal would scrape money from other corners of the agency’s $18-billion budget, which also supports programmes such as aeronautics, technology development and human spaceflight. Matt Mountain, director of the Space Telescope Science Institute in Baltimore, Maryland, says he is glad that the agency is making the JWST a priority. “There’s an acknowledgement that the science budget can’t solve this on its own,” says Mountain, whose institute operates the Hubble Space Telescope and is preparing to do the same for the JWST.
Related: What is The James Webb Telescope (JWT)?
The James Webb Space Telescope (sometimes called JWST) is a large, infrared-optimized space telescope. The project is working to a 2018 launch date. Webb will find the first galaxies that formed in the early Universe, connecting the Big Bang to our own Milky Way Galaxy. Webb will peer through dusty clouds to see stars forming planetary systems, connecting the Milky Way to our own Solar System. Webb’s instruments will be designed to work primarily in the infrared range of the electromagnetic spectrum, with some capability in the visible range.
Webb will have a large mirror, 6.5 meters (21.3 feet) in diameter and a sunshield the size of a tennis court. Both the mirror and sunshade won’t fit onto the rocket fully open, so both will fold up and open once Webb is in outer space. Webb will reside in an orbit about 1.5 million km (1 million miles) from the Earth.
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