NASA Selects PRIMA as First Probe-Class Far-Infrared Telescope, Moving It into Phase B

Key facts

• NASA has selected PRIMA (PRobe far-Infrared Mission for Astrophysics) as the first mission in its new Probe Explorers class of astrophysics satellites, advancing it into Phase B.
• The mission is managed by the Jet Propulsion Laboratory (JPL), with Caltech and IPAC in key roles, and carries a $1.2 billion cost cap excluding launch, targeting a 2033 launch if confirmed.
• PRIMA carries a 5.9-foot telescope designed to conduct deep far-infrared surveys of cold, dusty regions of the universe that optical and near-infrared telescopes cannot easily see.
• Its science goals include star and planet formation, black holes, and the origins of water, including on Earth, bridging existing infrared observatories and radio telescopes.
• Confirmation would still be required before PRIMA moves to later phases and launch.