NASA Launches Nancy Grace Roman Space Telescope
Science and Technology · Wednesday, 2 September 2026
Launched via a SpaceX Falcon Heavy, the Nancy Grace Roman Telescope is NASA’s next flagship observatory. It will survey the visible and near-infrared spectrum to unravel the mysteries of dark energy and exoplanets.
Quick highlights
- Equipped with a 300-megapixel near-infrared camera for panoramic surveys.
- Operates in a L2 (Lagrange Point 2) deep-space orbit, 1.5 million km from Earth.
- Uses 'Gravitational Microlensing' to detect distant gas giants and rogue planets.
- Features an advanced Coronagraph (CGI) to image faint exoplanets by suppressing starlight.
- Named after Dr. Nancy Grace Roman, the 'Mother of Hubble'.
Context
The telescope (formerly WFIRST) complements the James Webb Space Telescope by providing high-speed wide-field scanning that would take Hubble a century to complete.
Exam Angle
GS Paper III: Science & Technology. Focus on space missions, dark matter/energy, and exoplanet discovery techniques.
Remember this
- Mission: Wide Field Infrared Survey.
- Primary Mirror: 2.4 meters (same as Hubble).
- Orbit: Sun-Earth L2 Lagrange Point.
- Key instrument: Coronagraph for direct imaging of exoplanets.
- Dark Energy: The mission aims to test general relativity at cosmic scales.
Background reading
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