The Fermi Paradox presents one of the most profound and perplexing questions in the scientific community: Where is everyone? This seemingly simple inquiry touches the very core of our understanding of the universe, the nature of life, and the limits of human knowledge. Named after the Italian-American physicist Enrico Fermi, who first articulated the paradox during a casual lunch conversation in 1950, it challenges our assumptions about the existence of extraterrestrial civilizations. Despite the vastness of the universe and the high probability of life-sustaining planets, the absence of ..read more

 NASA astronauts Butch Wilmore and Sunita Williams Source : Flickr                                         In an unexpected turn of events, two NASA astronauts, Barry "Butch" Wilmore and Sunita Williams, face an extended stay aboard the International Space Station (ISS). Originally scheduled for an eight-day mission, technical challenges with their spacecraft mean they may remain in orbit until early 2025. This development highlights both the complexities of sp ..read more

  The School of Maths & Physics, University of Surrey successfully hosted the 13th Lewis Elton Lecture on Thursday, May 2nd, 2024, at the Austin Pearce 3 (AP3) Lecture Theatre in Guildford. The event, titled "Down to Earth Astronomy: A tour of the radio universe," captivated the audience with a journey through the unseen wonders of the cosmos unveiled by radio waves. A Warm Welcome and Introduction The evening commenced with a welcoming address by Professor Jim Al Khalili. He offered a warm introduction to the Lewis Elton lecture series and the esteemed speaker, Dr. Emma Chapman ..read more

  The UK was recently treated to a rare sight: the Aurora Borealis, or Northern Lights, dancing across its night sky. This phenomenon was caused by a powerful solar storm that hit Earth on May 10, 2024. This level was solar storm has not been seen since 2005.  Here's a breakdown of what happened and how you might catch a glimpse of the aurora if it continues: A Solar Storm Lights Up the Night A series of eruptions on the Sun's surface unleashed a stream of charged particles hurtling towards Earth at an incredible speed of 900 km/s (over twice the usual!). This "solar ..read more

Imagine a cosmic light source so powerful it could bathe the entire observable universe in its glow, its brilliance reaching us after billions of years of travel through the inky blackness of space. Believe it or not, astronomers haven't just dreamed this up – they've actually found it! This celestial object is a quasar named J0529-4351, boasting a luminosity that's a mind-boggling 500 trillion times greater than our very own Sun!                                               &nb ..read more

How do astronauts live in this Space-House? Is there any difference in the day to day activities they perform ? What do they eat? Can they eat Pizza ? How do they sleep? ... .. WHAT IS THE ISS The ISS or International Space Station is the third brightest object in the night sky and clearly visible when there’s no cloud cover. It moves much faster than anything else you are likely to see up there, too. While a typical aeroplane travels at around 965 km/h, the ISS moves at 28,000 km/h. Unlike a plane, there are no flashing lights on the ISS and it travels in a perfectly straight line. A coo ..read more

In the previous blog I explained why do we need a theory of Stellar Structure and Evolution when we can get information about stars by just observing them. In this blog I will cover- 1. The basic assumptions of theory of Stellar Structure and Evolution 2. Accuracy of Assumptions of theory of Stellar Structure and Evolution To understand above mentioned aims more clearly, let's first understand( answer these questions - that I generally don't see many writers stress about: What are the assumptions for a theory ? Assumptions are basically the foundation stones for a theory. These are taken a ..read more

Aim of this Blog is to explain why we need a theory of Stellar Structure and Evolution- A war between need of theory over observation. Before coming to the central question let us look at the answers to some simple looking but very crucial questions: Q1. What is meant by Stellar Structure and Evolution?  To understand structure and evolution of stars using laws of physics. Q2. What are stars ?  A star is an object that -  1. Radiates energy from an internal source  2. It is bound by its own gravity  3. Star should evolve ? But why ?  Stars are born within the c ..read more

 This blog includes -  1.1 What are Globular clusters ? 1.2 What are Binary Stars ? 1.3 What is escape velocity ? 1.4 How to Destroy a Globular Cluster ? 1.5 Summary of Topic  In this blog we will destroy a Cluster of Stars called Globular Cluster! The main focus of this Blog is to make you understand how you can destroy a Globular cluster for which we will run from 1.1 to 1.3 to gather all the material to understand the topic. If you know about all of this already you can directly skip to section 1.4 to know the real tea ? 1.1) What are Globular clusters ?  The name is der ..read more

Topics of this Blog include-  1.1- A brief about Milky Way Spiral Galaxy and Dark Matter  1.2- Details about Topic -Dark Matter Slowing down Milky Way 1.3 - Conclusion and Learnings from this discovery  1.4 - Summary of Topic 1.1) A brief about Milky Way galaxy and Dark Matter        Milky Way Galaxy   Milky way ( or Akashganga ) is our home galaxy. Approximately two-thirds of all spiral galaxies contain a bar, so does our galaxy - It is a barred spiral galaxy which means that it has a central bar with spiral body structure ( Fig. 1and 2)  ..read more