NASA teases new PRIMA telescope that could peer even deeper into the infrared universe than the James Webb Space Telescope

September 26, 2026 thedigitalsolutioncentre@gmail.com

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NASA is moving forward with designing a new space telescope that can see even deeper into the infrared universe than the James Webb Space Telescope (JWST) can.

The new mission, called PRIMA (Probe far-Infrared Mission for Astrophysics), is continuing its development to Phase B — the preliminary design and tech phase — according to a NASA statement. Managers will review the mission’s progress before officially beginning the telescope’s journey to launch; if all goes to plan, PRIMA will embark on a five-year mission no earlier than 2033.

PRIMA’s objective is to use a 5.9-foot [1.8 meters] telescope to examine the cosmos in the far-infrared, in a different set of wavelengths than the more famous JWST, which launched in 2021. (Other telescopes, such as Hubble and the newly launched Nancy Grace Roman Space Telescope, can also see some infrared wavelengths, but JWST was specifically designed to detect near- and mid-infrared light.) PRIMA’s mission focus will be to uncover more information about exoplanet origins, galaxy growth and black hole evolution.

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“The key science questions that PRIMA aims to address in relation to planet formation are to quantify the role of water in driving planet formation, [and to] determine the total gas masses and carbon and oxygen abundances in disks to reveal where exoplanets form,” Meredith MacGregor, an associate professor of physics and astronomy at Johns Hopkins University who studies how planetary systems form, told Live Science in an email.

PRIMA is also the first in a new class of spacecraft that NASA is calling Probe Explorers, which are meant to sit somewhere in between flagship, JWST-style missions and smaller agency efforts. Probe Explorers are a part of the decades-old Explorers Program that began with the Explorer 1 launch in 1958 and followed with more than 100 missions. Explorers perform “a wide variety of research and scientific exploration programs for Earth studies, space weather, the solar system, and the universe,” according to the agency.

The Probe Explorers were implemented after a recommendation from astrophysicists through the 2020 Decadal Survey, which is a consensus report issued by the National Academies of Sciences, Engineering, and Medicine on behalf of the community. NASA funded two concepts at $5 million apiece in 2024 and considered both PRIMA and the Advanced X-ray Imaging Satellite before announcing the decision to proceed with PRIMA this week.

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