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Exploring Cosmology, Exoplanets, and Infrared Astrophysics at 100x the scale of Hubble

Delving into the mysteries of dark energy

The Roman Space Telescope will delve into the mystery of dark energy by studying how the distribution of galaxies and dark matter has changed throughout cosmic history.

Discovering thousands of exoplanets

The Roman Space Telescope will complete the statistical census of planetary systems in the galaxy by using microlensing, the universe’s own magnifying glass, to find thousands of exoplanets.

Leading future exoplanet missions

The Roman Space Telescope will use a technique called coronagraphy to block the glaring light of exoplanet host stars to directly see planets and planet-forming disks. The Coronagraph Instrument is an advanced technology demonstrator for future exoplanet missions.

The ROTAC report on the Roman Core Community and General Astrophysics Surveys is available, including slides and video of a presentation of the report. More information can be found at the Roman Community Forum page.

Join the Roman Science Collaboration!

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Important Dates
Recent Site Updates
  • Oct 6, 2025
  • Oct 6, 2025
  • Sep 16, 2025
    • Added a link for download of the Coronagraph Instrument CAD printable models to the Multimedia top menu.

Previous Updates

Latest News
How nasa roman

September 16th, 2025

How NASA’s Roman Mission Will Unveil Our Home Galaxy Using Cosmic Dust

NASA’s Nancy Grace Roman Space Telescope will help scientists better understand our Milky Way galaxy’s less sparkly components — gas and dust strewn between stars, known as the interstellar medium.

The Roman Space Telescope and IPAC

Caltech/IPAC hosts the Roman Science Support Center (SSC). The responsibilities of the SSC include Coronagraph Instrument operations, science level processing of spectroscopic and microlensing WFI data, General Astrophysics proposal and grants management, and community engagement. The SSC also curates up to date telescope and instrument parameters and Roman science simulations and tools for the scientific community.