NASA's Jet Propulsion Laboratory Ships Out Coronagraph Instrument for Nancy Grace Roman Space Telescope

B-roll and sound bites for media and public use. Engineers at NASA’s Jet Propulsion Laboratory in Southern California have finished building the Roman Coronagraph Instrument on NASA’s upcoming Nancy Grace Roman Space Telescope and recently shipped the instrument to the agency’s Goddard Space Flight Center in Greenbelt, Maryland. As part of the Roman Space Telescope, the Coronagraph Instrument will help pave the way for the search for life beyond Earth by testing new tools that block starlight, revealing planets hidden in the glare of their host star. The space observatory is expected to launch in 2027. The Roman Coronagraph is a technology demonstration that will test hardware that can remove more unwanted starlight than other space coronagraphs. This coronagraph uses multiple movable components that will make it the first “active” coronagraph ever to fly in space. The Nancy Grace Roman Space Telescope is managed at NASA’s Goddard Space Flight Center, with participation by JPL and Caltech/IPAC in Southern California, the Space Telescope Science Institute in Baltimore, and a science team comprising scientists from various research institutions. The primary industrial partners are BAE Space and Mission Systems in Boulder, Colorado; L3Harris Technologies in Melbourne, Florida; and Teledyne Scientific & Imaging in Thousand Oaks, California. The coronagraph was designed and built at JPL, which manages the instrument for NASA. Contributions were made by ESA (the European Space Agency), JAXA (the Japanese Aerospace Exploration Agency), the French space agency CNES (Centre National d’Études Spatiales), and the Max Planck Institute for Astronomy in Germany. Caltech, in Pasadena, California, manages JPL for NASA. The Roman Science Support Center at Caltech/IPAC partners with JPL on data management for the coronagraph and generating the instrument’s commands.

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I don't like. So a coronagraph is a camera or an instrument that we use to look at planets around other stars. And the reason we need a special instrument to do this is because stars are so much brighter than planets. And what we need to do is we need to put something in front of the star to block the light from the star, so that we can instead see the very faint light coming from the planet. The other instrument, the coronagraph being built here at JPL, is bringing together a number of new technologies that will be demonstrated in space together for the first time.

If we show that these technologies work together well in space on the Roman coronagraph, we will have demonstrated about a thousand times better performance of a coronagraph in blocking starlight and allowing planet light to come through than any coronagraph ever built. So the Roma coronagraph has a few new technologies that are going to make it much, much better than existing coronagraph. One of those technologies is little deformable mirrors about this big, but these mirrors have thousands of pistons on them that allow us to change the shape of the mirror. And by changing the shape of this mirror, we can correct tiny imperfections in the Roman telescope or the Roman coronagraph itself to get much, much better perform mass out of the coronagraph. The Roman coronagraph will observe larger exoplanets roughly the size of Jupiter.

Testing the technology to see these planets is the stepping stone toward one day capturing direct images of Earth like planets around sun like stars.

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