News in Shorts: 17 March 2025

PWOnlyIAS

March 17, 2025

News in Shorts: 17 March 2025

Ramadevara Betta Hill

Context: Ramadevara Betta Hill, located in Ramanagara, Karnataka, has seen its fourth consecutive year of successful breeding for the endangered long-billed vultures

About Ramadevara Betta Vulture Sanctuary

  • Ramadevarabetta Vulture Sanctuary, located in Ramanagara, Karnataka,
  • It is India’s first and only vulture sanctuary. 
  • It was established in 2012 to protect endangered vulture species.
  • Vulture Species in the Sanctuary
    • Out of nine vulture species found in India, three species are seen here:
      • Long-billed Vulture (Indian vulture) – Endangered
      • Egyptian Vulture – Critically Endangered
      • White-backed Vulture – Endangered

About Ramadevara Betta Hill

  • Ramadevara Betta is a famous hill in Ramanagara, Karnataka. 
  • Also known as:  Ramagiri.
  • Historical Importance
    • Ancient Heritage: The hill has a long history, dating back to the Vijayanagara Empire and Kempegowda’s rule.
    • Strategic Location: It served as a military and defense point due to its high vantage position.
  • Architectural Wonders
    • Ancient Temples: The hill has temples dedicated to Lord Rama and Lakshmana.
    • Traditional South Indian Architecture: The temples feature intricate carvings and stone sculptures.

 

Impact of GHGs on Satellites

Context: Recently a study published in Nature Sustainability indicates that high GHG levels could reduce the number of satellites that can safely orbit Earth by up to 66% by 2100.

  • Atmospheric modeling was used to estimate changes in Earth’s orbital capacity under different emission scenarios.

Effect of Greenhouse Gases on the Atmosphere

  • GHG emissions cause cooling and contraction of the mesosphere (50-85 km) and thermosphere (85-600 km), leading to a shrinking upper atmosphere.
  • Reason: Increased infrared radiation is reflected into space, reducing atmospheric drag.
  • Effects:
    • Lower atmospheric density: Space debris remains in orbit longer.
    • Longer satellite lifespans: But higher risks of space congestion and collisions.
    • Slower satellite deorbiting : Satellites take longer to re-enter the atmosphere and burn up.

Implications for Space Sustainability

  • Reduced deorbiting rates: Satellites remain in orbit longer, increasing space congestion and collision risks.
  • The study highlights the urgent need for better orbital debris management and mitigation strategies.

To get PDF version, Please click on "Print PDF" button.

Need help preparing for UPSC or State PSCs?

Connect with our experts to get free counselling & start preparing

Aiming for UPSC?

Download Our App

      
Quick Revise Now !
AVAILABLE FOR DOWNLOAD SOON
UDAAN PRELIMS WALLAH
Comprehensive coverage with a concise format
Integration of PYQ within the booklet
Designed as per recent trends of Prelims questions
हिंदी में भी उपलब्ध
Quick Revise Now !
UDAAN PRELIMS WALLAH
Comprehensive coverage with a concise format
Integration of PYQ within the booklet
Designed as per recent trends of Prelims questions
हिंदी में भी उपलब्ध

<div class="new-fform">






    </div>

    Subscribe our Newsletter
    Sign up now for our exclusive newsletter and be the first to know about our latest Initiatives, Quality Content, and much more.
    *Promise! We won't spam you.
    Yes! I want to Subscribe.