NASA completes assembly of the Telescópio Espacial Nancy Grace Roman in the center of the Estados Unidos. The integration of the two main sections took place on November 25, 2025 at Goddard Space Flight Center, at Maryland. The observatory now enters the final testing phase before transport to the launch site.
Telescópio Espacial Nancy Grace Roman represents the American space agency’s next major advance in infrared observations. With a 2.4-meter primary mirror, the equipment promises to map vast regions of the universe. The launch is scheduled for May 2027, but could occur as early as autumn 2026.
The five-year mission will focus on large-scale surveys to investigate cosmic phenomena.
Main instruments of the observatory
The Wide Field Instrument has a resolution of 288 megapixels and a field of view 200 times larger than that of the Hubble.
This instrument operates in the near infrared and includes filters to capture data from distant galaxies.
- High-Latitude Wide-Area Survey: will cover hundreds of millions of galaxies to study cosmic structure.
- High-Latitude Time-Domain Survey: will monitor supernovae to measure expansion of the universe.
- Galactic Bulge Time-Domain Survey: will detect exoplanets via gravitational microlensing.
The Coronagraph Instrument blocks starlight for direct imaging of extrasolar planets.
🚀✨ JUST OUT: NASA Completa Construção from Telescópio Espacial Roman! ✨🔭
—Sacani (Space Today) – AKA Gordão Foguetes (@SpaceToday1)December 15, 2025
Humanity’s new window to the cosmos is READY! 🌌
Telescópio Espacial Nancy Grace Roman has officially been completed and is preparing for its launch in 2027! 🎯
🔥 Why is this…pic.twitter.com/DucHu9JTlA
Mission scientific objectives
The telescope will investigate dark energy, responsible for 68% of the universe, testing theories about its constant or dynamic nature.
Researchers will map dark matter through weak gravitational lensing in billions of galaxies.
The mission will conduct a census of exoplanets, including isolated, low-mass worlds not detected by traditional methods.
Observations will include galaxy evolution and star formation in Via Láctea.
Comparisons with other telescopes
The Roman has the same mirror diameter as the Hubble, but provides images of similar quality over a much larger area.
Unlike James Webb, which prioritizes deep observations, Roman emphasizes broad infrared surveys.
The equipment will generate more than 20 petabytes of data annually, made publicly available.
This capability complements existing missions and prepares technologies for future exploration.
Launch and operations schedule
The launch will take place aboard a SpaceX Falcon Heavy, from the Kennedy Space Center at Flórida.
After arrival at point L2, commissioning will last six months.
Scientific observations begin in late 2027 or early 2028.
Current tests include vibration, acoustic and thermal in vacuum to ensure function in space.
Tribute and legacy of the project
The telescope is named in honor of Nancy Grace Roman, the first head of astronomy at Nasa and a pioneer in space telescopes.
Known as “mother of Hubble”, she promoted widespread access to cosmic data.
The project originated in 2010 and accelerated with hardware donations in 2012.
Despite challenges such as the pandemic, the assembly concluded as planned.
Final preparations underway
Technicians carry out integration in a clean room to avoid contamination.
The outer barrel assembly includes solar panels and protective cover.
Transport for Flórida is scheduled for summer 2026.
Teams focus on precision to validate the coronagraph in the first months of operation.
