Comparison of Hubble Telescope and Nancy Grace Roman Telescope

• Author(s): Dr. M. Easwari ; M. Sivapooja ; C. Ramuthai
• Paper ID: 1710052
• Page: 218-226
• Published Date: 14-08-2025
• Published In: Iconic Research And Engineering Journals
• Publisher: IRE Journals
• e-ISSN: 2456-8880
• Volume/Issue: Volume 9 Issue 2 August-2025

Abstract

This paper presents a comparative analysis of the Hubble Space Telescope and the upcoming Nancy Grace Roman Space Telescope, focusing on their design, capabilities, scientific objectives, and expected impact on astrophysics and cosmology. Launched in 1990, the Hubble Space Telescope has revolutionized our understanding of the universe through high-resolution imaging across ultraviolet, visible, and near-infrared wavelengths. In contrast, the Nancy Grace Roman Space Telescope, scheduled for launch in the mid-2020s, is designed to address key questions in dark energy, exoplanet detection, and wide-field infrared surveys. While both telescopes share a similar primary mirror size (2.4 meters), Roman's Wide Field Instrument offers a field of view approximately 100 times greater than Hubble’s, enabling large-scale sky surveys with unprecedented efficiency. Additionally, Roman’s Coronagraph Instrument aims to directly image exoplanets and study their atmospheres—capabilities beyond Hubble's design. This comparison highlights how the Roman Telescope builds upon Hubble’s legacy, transitioning from narrow, deep-field imaging to wide-field statistical analysis, thereby complementing and extending the scientific reach of space-based astronomical observatories.

Citations

IRE Journals:
Dr. M. Easwari , M. Sivapooja , C. Ramuthai "Comparison of Hubble Telescope and Nancy Grace Roman Telescope" Iconic Research And Engineering Journals Volume 9 Issue 2 2025 Page 218-226

IEEE:
Dr. M. Easwari , M. Sivapooja , C. Ramuthai "Comparison of Hubble Telescope and Nancy Grace Roman Telescope" Iconic Research And Engineering Journals, 9(2)