NASA Roman Space Telescope Objectives and Cosmic Research
Source:Indian Express ↗
কেন এটি গুরুত্বপূর্ণ
Important for understanding cutting-edge global space missions, astronomical instruments, and space exploration objectives akin to previous questions on the James Webb Space Telescope.
সারসংক্ষেপ
An explanation of NASA's Nancy Grace Roman Space Telescope, its unique technological capabilities, wide-field infrared surveying capacity, and its objectives in decoding cosmic mysteries like dark energy, dark matter, and exoplanets.
মূল বিষয়
- NASA's Nancy Grace Roman Space Telescope is designed to study dark energy, dark matter, and discover exoplanets on a massive scale.
- It features a field of view that is 100 times greater than the Hubble Space Telescope's infrared instrument, allowing it to survey wide swaths of the universe quickly.
- The telescope will help astronomers understand the expansion rate of the universe and search for distant planets using gravitational microlensing.
গুরুত্বপূর্ণ শব্দ
Roman Space Telescope
A NASA infrared space telescope launched to the Sun-Earth L2 Lagrange point to conduct wide-field surveys investigating dark energy, dark matter, and exoplanets.
UPSC context
UPSC Prelims/Mains: Important space technology missions, international space agencies, and deep-space astronomy projects.
NASA
The United States federal agency responsible for civilian space program, aeronautics research, and landmark astrophysics missions like the Hubble and Roman space telescopes.
UPSC context
UPSC Prelims: Global space agencies, international scientific cooperation, and landmark technological achievements in space exploration.
প্রিলিমস ফাঁদ
The Roman Space Telescope has a primary mirror and field of view identical to the James Webb Space Telescope.
Aspirants often confuse the Roman Space Telescope with the James Webb Space Telescope or Hubble. Roman's defining feature is its wide field of view (100x Hubble's infrared instrument), not raw primary mirror diameter or pure infrared sensitivity.
সংযুক্ত স্থির ধারণা
What are Lagrange Points and why is the L2 point significant for space telescopes?
- Equilibrium Points: Gravitational equilibrium positions where the gravitational pull of two large masses precisely equals the centripetal force required for a small object to move with them.
- Five Points: Five Lagrangian points (L1 to L5) exist in any orbital system; L1 and L2 lie on the line connecting the two large bodies.
- L2 Advantages: L2 is located ~1.5 million km from Earth away from the Sun, offering an unobstructed view of deep space and stable thermal shielding.
- Observatory Hub: Major space observatories like James Webb Space Telescope and Roman Space Telescope are stationed at the Sun-Earth L2 point.
আন্তঃবিষয় প্যাটার্ন
Space Exploration + Lagrange Points + International Cooperation
Deep space astronomy missions at L2 require advanced cryogenic cooling, stable orbital mechanics, and international deep-space network tracking coordination by ISRO and NASA.
Lagrange points (L1, L2) and space telescope capabilities (JWST vs Roman vs Hubble) are high-yield static-current hybrid prelims themes.
সংযুক্ত PYQ · 2
সংযুক্ত PYQ · 2
- 2023PrelimsGS1
Consider the following pairs: Objects in space Description 1. Cepheids: Giant clouds of dust and gas in space 2. Nebulae: Stars which brighten and dim periodically 3. Pulsars: Neutron stars that are formed when massive stars run out of fuel and collapse How many of the above pairs are correctly matched?
- 2022MainsGS3
Launched on 25th December, 2021, James Webb Space Telescope has been much in the news since then. What are its unique features which make it superior to its predecessor Space Telescopes ? What are the key goals of this mission ? What potential benefits does it hold for the human race?
