precision

Science Release: Hubble and Gaia team up to measure 3D stellar motion with record-breaking precision
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A team of astronomers used data from both the NASA/ESA Hubble Space Telescope and ESA’s Gaia satellite to directly measure the 3D motions of individual stars in a nearby galaxy. The achieved accuracy is better than anything previously measured for a galaxy beyond the Milky Way. The motions provide a field test of the currently-accepted […]

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James Webb Space Telescope Optical Telescope Element Simulator (OSIM)
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Pictured here is the OSIM (Optical Telescope Element Simulator) – also called the optical bench. This will not fly in space but will serve to aid precise measurements on the ground, needed for precision integration of the instruments. Credit: NASA/Goddard Space Flight Center/Chris Gunn NASA Image Use Policy Follow us on Twitter Like us on […]

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