Results 1 to 10 of about 25,427 (204)
James Webb Space Telescope Orbit Determination Analysis [PDF]
The James Webb Space Telescope (JWST) is designed to study and answer fundamental astrophysical questions from an orbit about the Sun-Earth/Moon L2 libration point, 1.5 million km away from Earth.
Richon, Karen +2 more
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Design and Preliminary Ground Experiment for Deployable Sunshade Structures of a Modular Space Telescope. [PDF]
On-orbit assembling space telescope (OAST) is one of the most feasible methods to implement a large-scale space telescope. Unlike a monolithic space telescope (such as Hubble Space Telescope, HST) or a deployable space telescope (such as James Webb Space
Kuang Y, Wang S, Gao Y, Xu B, Xu S.
europepmc +2 more sources
Modernization of NASA's Johnson Space Center Chamber: A Payload Transport Rail System to Support Cryogenic Vacuum Optical Testing of the James Webb Space Telescope (JWST) [PDF]
NASA is the mission lead for the James Webb Space Telescope (JWST), the next of the "Great Observatories", scheduled for launch in 2018. It is directly responsible for the integration and test (I&T) program that will culminate in an end-to-end cryo ...
Garcia, Sam +2 more
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Nautilus: The advent of large lens-based space telescopes [PDF]
One of the most profound and philosophically captivating foci of modern astronomy is studies of Earth-like exoplanets in search of life in the Universe.
Kim Daewook +2 more
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These are my personal recollections of my 50‐year involvement in planning NASA space projects, including the Voyager Missions, The Hubble Space Telescope, the International Space Station, the Space Shuttle, the Falcon Space X launcher, and the James Webb
Charles F. Kennel
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A new era in solar system astronomy with JWST
The exploration of our solar system is being radically changed since the beginning of operations of the James Webb Space Telescope (JWST) in mid 2022.
G. L. Villanueva, S. N. Milam
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High-redshift JWST Observations and Primordial Non-Gaussianity
Several bright and massive galaxy candidates at high redshifts have been recently observed by the James Webb Space Telescope. Such early massive galaxies seem difficult to reconcile with standard Λ cold dark matter model predictions.
Matteo Biagetti +2 more
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What the Upper Atmospheres of Giant Planets Reveal
The upper atmospheres of the Giant Planets, Jupiter, Saturn, Uranus and Neptune are transition regions between meteorological layers and outer space. As a result of their exceptionally rarefied nature, they are highly sensitive and therefore revealing ...
James O’Donoghue, Tom Stallard
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Confirmation of Subsolar Metallicity for WASP-77Ab from JWST Thermal Emission Spectroscopy
We present the dayside thermal emission spectrum of WASP-77Ab from 2.8 to 5.2 μ m as observed with the NIRSpec instrument on the James Webb Space Telescope (JWST). WASP-77Ab was previously found to have a subsolar metallicity and a solar carbon-to-oxygen
Prune C. August +6 more
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Observing Planetary and Pre-Planetary Nebulae with the James Webb Space Telescope
Most stars in the Universe that leave the main sequence in a Hubble time will end their lives evolving through the Planetary Nebula (PN) evolutionary phase.
Raghvendra Sahai
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