![]() ![]() MIRI: A combined mid-IR camera (1.4' × 1.9') and spectrograph (R~3000) covering wavelengths 5 - 28 µm.NIRSpec: A wide field (3.5' × 3.5') multi-object near-IR spectrograph covering wavelengths 0.6 μm - 5 µm at spectral resolutions of R~100, R~1000 and R~2700.NIRCam: A wide field (2.2' × 4.4') near-IR camera covering wavelengths 0.6 - 5 µm.JWST will carry four science instruments: This makes its operation, pointing and stability requirements much simpler in comparison with HST. JWST will operate in an orbit around the L2 point, approximately 1.5 million kilometres away from Earth. The total observatory mass will be 6200 kilograms.JWST's wavelength range covered by the scientific instruments will be from about 0.6 μm to 28.5 μm (visible to the mid-infrared light), compared to HST's 0.1 μm - 2.5 μm (ultraviolet to the near infrared).At 21.2 m × 14.2 m this is about the size of a tennis court It will have a giant shield protecting the telescope and the instruments from the light of the Sun.The primary mirror will be 6.5 metres in diameter and is made of 18 mirror segments of gold-coated beryllium.Some of the key characteristics of JWST are: The JWST observatory includes three main elements, the Integrated Science Instrument Module (ISIM), the Optical Telescope Element (OTE) and the Spacecraft Element which comprises the spacecraft bus and the sunshield. The James Webb Space Telescope (JWST) was formerly known as the Next Generation Space Telescope (NGST). Webb, who headed the agency from February 1961 to October 1968, at the time of the Apollo programme. The James Webb Space Telescope honours NASA's second administrator, James E. JWST's investigations will cover questions such as: What did the early Universe look like? When did the first stars and galaxies emerge? How did the first galaxies evolve over time? What can we learn about dark matter and dark energy? How and where do stars form? What determines how many of them form and their individual masses? How do stars die and how does their death impact the surrounding medium? Where and how do planetary systems form and evolve? Mission Name The James Webb Space Telescope (JWST) is a general-purpose observatory with a large aperture telescope optimised for infrared observations and a suite of state-of-the-art astronomical instruments capable of addressing many outstanding issues in astronomy. ![]() JWST's primary aim is to shed light on our cosmic origins: it will observe the Universe's first galaxies, reveal the birth of stars and planets, and look for exoplanets with the potential for life.ĮSA, NASA and the Canadian Space Agency (CSA) have collaborated since 1996 on the definition of a successor to the Hubble Space Telescope (HST). ![]() Nominal duration is 5 years goal is 10 yearsĦ200 kg, including observatory, on-orbit consumables and launch vehicle adaptor ![]()
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