The release of the Call for Proposals is delayed due to the government shutdown. A new release date will be announced after the government reopens.
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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
  • Nov 10, 2025
    • Added a link to the sign-up page for the Microlensing Data Challenge 2026.
  • Oct 6, 2025
  • Oct 6, 2025

Previous Updates

Latest News
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December 3rd, 2025

NASA Completes Nancy Grace Roman Space Telescope Construction

NASA’s next big eye on the cosmos is now fully assembled. On Nov. 25, technicians joined the inner and outer portions of the Nancy Grace Roman Space Telescope in the largest clean room at the agency’s Goddard Space Flight Center in Greenbelt, Maryland.

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.