Science
Space Debris: The Growing Junk Crisis in Earth’s Orbit
Millions of fragments of dead satellites and rocket stages now circle the Earth. Space debris is fast becoming a crisis that threatens…
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Evolution by Natural Selection: Darwin’s Idea Explained With Indian Examples
Darwin's idea in Indian dress: drug-resistant TB, the peacock's tail and the Western Ghats' frogs. Natural selection explained with subcontinental examples.
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What Happens to the Human Body in Space
In orbit the human body weakens, swells and steadily loses bone. Here is what months in weightlessness do to astronauts, and how…
Science
How Fossils Are Dated: Radiometric Dating Explained
How do we know a fossil is 66 million years old? Inside atoms tick clocks immune to heat and time. Radiometric dating…
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Why Sriharikota Sits on India’s East Coast: The Science of Launch Sites
Sriharikota sits on India's east coast for reasons written in pure physics. Here is the science behind choosing exactly where rockets lift…
Science
The Deccan Traps: When Lava Buried India and the Dinosaurs Died
Sixty-six million years ago, lava buried western India as the dinosaurs died. Asteroid or volcanoes? New dating says both: the story of…
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The James Webb Space Telescope: How It Sees the Universe’s First Galaxies
The James Webb Space Telescope sees the universe's first galaxies in infrared light. Here is how its golden mirror looks back 13.5…
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Human Evolution: The Long Road From Early Apes to Homo Sapiens
Six million years from upright apes to a species reading its own genome, via Neanderthals, Denisovans and India's Narmada hominin. The human…
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How the Giant Metrewave Radio Telescope in Pune Listens to the Cosmos
In Pune, giant dishes listen to radio whispers from across the cosmos. Here is how the GMRT tunes in to the universe's…
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Why Species Go Extinct – and Why Extinction Matters
Species vanish naturally, but today's extinction rate is up to 1,000 times normal. Why species die, from dodos to vultures, and why…