IGCs Science

The Second Law of Thermodynamics, a cornerstone in various scientific disciplines, describes entropy as a form of energy dispersal rather than disorder, and its implications are far-reaching, particularly in defining the arrow of time. This law is considered fundamental to all sciences and is largely considered inviolable by the scientific community, though its absolute status and foundational issues continue to be explored and debated. There are various versions of the second law, each expressing a notion of irreversibility with differing implications.   Defining the Second Law of Thermodynamics   The second law of thermodynamics is not a single, universally defined statement, but rather encompasses various versions and degrees of generality. It is often taught through concepts of reversibility. Historically, Carnot, Clausius, Kelvin, Planck, Gibbs, Carathéodory, and Lieb and Yngvason have all contributed to its formulations. One notable formulation by Planck emphasizes the i...

Why Your Room Always Gets Messy (and How Physics Explains Life Itself) If you've ever stared at a pile of clothes on your floor, wondering why tidiness feels like a constant battle, you’ve experienced one of the universe's most fundamental rules. Physics has a name for this tendency toward chaos: Entropy. This isn't just a fun concept; proposed by Ludwig Boltzmann, entropy has evolved into a common paradigm that affects everything from science and economy to culture. It even lends a framework for interpreting basic physics ideas like chance, disorder, and irreversibility. Fig: Entropy is defined as a measure of a system’s disorder or the energy unavailable to do work. What Is Entropy, Really? In simple terms, entropy is related to disorder or randomness. Think about your room again: there are exponentially more ways for socks, books, and wrappers to be strewn everywhere (the messy state) than there is one specific, tidy arrangement. Disorder is simply the most l...

Halley’s Comet : The Wanderer of the Skies Returns Welcome back, skywatchers and space enthusiasts! This week, let’s embark on a journey through time and cosmos as we explore one of the most famous visitors in our solar system 1P/Halley , more commonly known as Halley’s Comet . Whether you've glimpsed it through a telescope or merely caught its name in history books, this celestial traveler has a story as rich and captivating as the night sky itself. Why Halley’s Comet Is a Cosmic Celebrity? Halley’s Comet isn’t just another icy rock hurtling through space; it’s the quintessential periodic comet that has fascinated humanity for centuries. Discovered to have a predictable return, it swings by Earth roughly every 76 years, thrilling generations with a spectacular display. Its appearances have been documented as far back as 240 BCE, with notable sightings recorded by ancient Chinese, Babylonian, and medieval European astronomers.Unlike most comets that make a one-time visit on their e...

  Main Takeaway As of November 2025, there is no confirmed third interstellar object (3I/ATLAS or similar) in the scientific record. Only two officially recognized interstellar objects   1I/'Oumuamua and 2I/Borisov   have been detected and extensively studied using peer-reviewed methods. The designation "3I/ATLAS" does not correspond to any known, observed, or researched object in the literature or astronomical databases. What Are Interstellar Objects? Interstellar objects (ISOs) are bodies originating from outside our solar system that pass through it on hyperbolic (unbound) trajectories . These objects provide direct samples of material from other planetary systems, offering unique insights into planetary system formation , galactic processes , and the diversity of cosmic materials . Official ISO Naming Convention The International Astronomical Union (IAU) assigns designations to these rare interstellar visitors: ·  1I/2017 U1 ('Oumuamua): The first ISO ·  2I...