Facts about Roman Space Telescope
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Managed by NASA's Goddard Space Flight Center, Roman's mission is designed to last a minimum of five years, with fuel reserves potentially extending operations beyond a decade.
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Roman's wide-field imaging capability will survey 200 square degrees of sky per observation, enabling detection of supernovae across cosmic distances to constrain dark energy models.
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Scientists designed Roman's integral field unit to measure galaxy rotation rates and internal dynamics by capturing detailed spectroscopic data across thousands of distinct spatial regions simultaneously.
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Approximately 2,000 spectra per exposure will be captured simultaneously by Roman's integral field unit, measuring the light from distant galaxies to map their chemical composition and motion.
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Infrared wavelengths between 0.6 and 2.0 micrometers will be Roman's primary observation range, allowing it to peer through cosmic dust obscuring visible light observations of distant galaxies.
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Over 1.2 million miles from Earth at the Sun-Earth L2 Lagrange point, Roman will maintain a stable orbit requiring minimal fuel to counteract solar radiation pressure.
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Roman's coronagraph instrument will be capable of directly imaging exoplanets by blocking starlight, enabling study of planets orbiting stars up to 40 light-years away.
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At 2.4 meters in diameter, Roman's primary mirror matches Hubble's size but will map dark energy across billions of galaxies to understand cosmic expansion.
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Nancy Grace Roman, the NASA astrophysicist after whom the telescope is named, pioneered techniques for measuring stellar distances in the 1950s and 1960s.
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The Roman Space Telescope's 2.4-meter primary mirror will use 288 individual segments capable of detecting objects 100 million times fainter than naked-eye stars.
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Launching in 2027, NASA's Roman Space Telescope will observe infrared light across a field of view 100 times larger than Hubble's.