In a landmark moment for India's space ambitions, Indian astronaut Shubhanshu Shukla has blasted off to the International Space Station (ISS) as part of the Axiom-4 mission , marking the country's return to human spaceflight after a 41-year hiatus . This historic launch from NASA’s Kennedy Space Center in Florida has not only reignited national pride but also officially kickstarted India’s human spaceflight programme . The mission, operated by Axiom Space , includes a four-member international crew that will spend 14 days in orbit , conducting scientific research, outreach programs, and various commercial activities. This momentous occasion places India among a select group of nations capable of sending humans into space and reflects the growing prowess of the Indian space sector . A New Chapter: Shubhanshu Shukla and India’s Astronautical Comeback The last Indian to go to space was Rakesh Sharma in 1984, aboard the Soviet spacecraft Soyuz T-11. Now, in 2025, Shubhanshu...
Silicon Carbide: A Revolutionary Material for Lunar Habitats
Introduction
Researchers have successfully extracted silicon carbide (SiC) from simulated moon soil. This breakthrough could lead to the development of SiC-based composites for building lunar habitats, offering superior durability, thermal stability, and radiation resistance.
About Silicon Carbide (SiC)What is Silicon Carbide?
- Also known as Carborundum, SiC is a synthetic crystalline compound of silicon (Si) and carbon (C).
- It occurs naturally in very small amounts as the rare mineral moissanite but is primarily manufactured for industrial use.
Properties of Silicon Carbide
- Extremely Hard – Has a hardness of 9.5 on the Mohs scale (just below diamond).
- High Thermal Conductivity – Efficient at dissipating heat, making it useful in high-temperature environments.
- Excellent Resistance to Wear & Oxidation – Ideal for extreme conditions like space and lunar surfaces.
- Chemically Inert – Highly resistant to most chemical reactions, ensuring durability in hostile environments.
- Radiation Resistance – Provides protection from cosmic rays and solar radiation, crucial for lunar structures.
Applications of Silicon Carbide
- Space & Lunar Habitats – Used in building materials for lunar bases, offering thermal insulation and durability.
- Electrical & Semiconductor Industry – Used in high-performance electronics, including power devices and LEDs.
- Mechanical & Structural Engineering – Applied in turbines, aircraft brakes, and engine components.
- Ballistic Protection – Used in armor plates for military and security purposes.
- Aerospace Industry – Helps in making heat shields for re-entry vehicles.
- Lunar Construction: Helps build radiation-resistant and durable structures.
- Thermal Stability: Protects against extreme lunar temperatures (ranging from -173°C to 127°C).
- Space Electronics: Enhances high-performance semiconductors for lunar power systems.
- Sustainable Resource Utilization: Enables the use of lunar regolith (moon soil) for in-situ manufacturing.
Silicon carbide is a game-changing material for space exploration and lunar colonization. Its durability, thermal properties, and radiation resistance make it an ideal choice for building future moon bases, paving the way for long-term human habitation on the Moon and beyond!