Introduction
- India’s Department of Science and Technology (DST) has shown a renewed interest in the global scientific endeavor, the Thirty Meter Telescope (TMT) project, as evidenced by their recent visit to Mauna Kea in Hawai’i.
- This visit marks a significant step in addressing the challenges faced by this ambitious astronomical project.
Overview of the TMT Project
- Project Description: The TMT is envisioned as a 30-metre diameter primary-mirror optical and infrared telescope, designed for deep space observations.
- International Collaboration: It is a joint venture involving the U.S., Japan, China, Canada, and India, with India’s participation approved by the Union Cabinet in 2014.
Key facts related to TMT
- Its 30m diameter prime-mirror will allow it to observe wavelengths ranging from ultraviolet to mid-infrared with up to 80 times more sensitivity of today’s largest telescopes.
- It can deliver images at infrared wavelengths more than 12 times sharper than the famed Hubble Space Telescope and 4 times sharper than James Webb Space Telescope (JSWT).
Challenges and Controversies
- Location Issues: Mauna Kea, the proposed site for the TMT, is an inactive volcano considered sacred by local communities. The site has faced opposition due to its cultural and religious significance.
- Legal Hurdles: The Supreme Court of Hawaii invalidated the construction permits in 2015, although they were later restored in 2018. Despite this, local opposition has continued to impede construction.
Alternate Site Consideration
- Plan B: The Observatorio del Roque de los Muchachos (ORM) on La Palma in Spain’s Canary Islands is being considered as an alternative site for the TMT.
- India’s Stance: As per statements made in 2020, India prefers moving the project to an alternate site, subject to the availability of necessary permits and procedures.
India’s Role and Contribution
- Major Contributor: India is expected to play a significant role in the TMT project, contributing hardware, instrumentation, and software worth $200 million.
- Mirror Production: Of the 492 required mirrors, India will contribute 83, showcasing its capabilities in precision engineering and technology.
Current Status and Future Prospects
- Ongoing Discussions: Efforts are being made to reach a consensus that respects the concerns of the local people in Hawai’i.
- Progress in Component Development: Despite the delay in construction, significant advancements have been made in developing essential components for the TMT.
- Decision Timeline: A firm decision on the project’s site is anticipated within the next two years, as per Annapurni Subramaniam, director of the Indian Institute of Astrophysics (IIAP).
