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<\/p>\nFollowing an Independent Review Board report on the James Webb Space Telescope project, NASA has announced a further delay to the telescope\u2019s anticipated launch. Coming just three months after a year-long delay to 2020, NASA now says the telescope will not be ready to launch until 2021 at the earliest and that the project will breach its $8.8 billion USD cost cap.<\/p>\n
James Webb goals and mission:<\/b><\/p>\n
While the delays currently form the conversation surrounding the James Webb Space Telescope (JWST), it is important to remember the benefits to science and astronomy the telescope will offer. At 100 times the power of the Hubble Space Telescope, JWST will provide unprecedented resolution and sensitivity of the farthest and oldest objects of the universe and will enable a broad range of investigations across the fields of astronomy and cosmology.<\/p>\n
One of the telescope\u2019s major goals is observing some of the most distant events and objects in the universe, like the formation of the first galaxies \u2013 targets that are beyond the reach of current ground- and space-based observatories. Other goals include understanding the formation of stars and planets as well as direct imaging of exoplanets and novas.<\/p>\n
Unlike Hubble, which observes in the near ultraviolet, visible, and near infrared spectra, JWST will observe the long-wavelength (orange to red) spectrum in the mid-infrared (0.6 to 27 \u03bcm) range \u2013 allowing JWST to see high redshift objects too old and distant for Hubble and other telescopes to observe. Observations conducted via mid-infrared better penetrate dust and gas and will allow JWST to see dimmer, cooler objects than Hubble and the Spitzer Space Telescope can.<\/p>\n
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NASA\u2019s James Webb Space Telescope, set for launch NET 2021<\/p>\n
JWST is also far better suited to observe the cosmological redshift. The more distant an object is from Earth, the younger it appears because its light takes a very long time to reach our observatories. This, coupled with the fact that the universe is expanding, means that light from the earliest stars and galaxies becomes red-shifted as it travels toward Earth.<\/p>\n
Because of this, these early-universe objects are easier to observe if viewed in the mid-infrared \u2013 as JWST will do. In fact, JWST\u2019s infrared capabilities are expected to allow scientists and observers to see back in time to the formation of the first galaxies just a few hundred million years after the Big Bang.<\/p>\n
JWST is planned for launch on a Arianespace Ariane 5 rocket from the Guiana Space Centre in Kourou, French Guiana in South America.<\/p>\n
Space Shuttle (adsbygoogle = window.adsbygoogle || []).push({});<\/p>\n New delay:<\/b><\/p>\n Providing an update on the results of the Independent Review Board (IRB) and ongoing schedule for the James Webb Space Telescope \u2013 the agency\u2019s much heralded follow-on observatory of the Hubble Space Telescope \u2013 NASA today confirmed that:<\/p>\n\n