pp 1-3 January 2021 General Editorial

General Editorial on Publication Ethics

pp 5-8 January 2021 Editorial

Editorial

pp 9-9 January 2021 Science Smiles

Science Smiles

pp 13-31 January 2021 General Article

Stephen Hawking (1942–2018)

Rajesh Gopakumar Spenta R Wadia

pp 33-46 January 2021 General Article

Recent Progress on the Black Hole Information Paradox: Computation of the Page Curve

Raghu Mahajan

pp 47-60 January 2021 General Article

Of Light and Shadows: Raychaudhuri’s Equation, the Big Bang and Black Holes

Joseph Samuel

pp 61-71 January 2021 General Article

Body Size Matters in the Lives of Organisms

T R Rao

pp 73-87 January 2021 General Article

Priyadaranjan Ray: Contributions to Chemical Science

Rajarshi Ghosh

pp 89-104 January 2021 General Article

Brownian Motion

B V Rao

pp 105-126 January 2021 Series Article

How to Design Experiments in Animal Behaviour: 16. Cutting-Edge Research at Trifling Cost

Raghavendra Gadagkar

pp 127-128 January 2021 Classroom

A Visual Proof: $e \leq A \leq B \Rightarrow AB > BA$

Nazrul Haque

pp 129-132 January 2021 Book Review

Can Argumentation be Taught in School?

Jeena Anne K

pp 133-156 January 2021 Classics

Particle Creation by Black Holes

pp 157-157 January 2021 Information and Announcements

Science Academies’ Refresher Course on Recent Trends in Molecular Biology Technology–Concepts and Practice 01-14 March 2021

pp 158-158 January 2021 Information and Announcements

Science Academies’ Virtual Refresher Course on Taxonomy of Cryptogams their Sustainable Utilization and Conservation in Climate Change

pp 159-159 January 2021 Information and Announcements

Inventa Science Magazine

pp 160-160 January 2021 Night Life

Ancient Elusive Singers