Asteroids and Earth: How Scientists Measure the Risk
What does ‘potentially hazardous’ really mean? How scientists calculate asteroid impact risks, why probabilities change, and what NASA’s DART mission demonstrated.
Science & Signs
The Hidden Energy Cost of Artificial Intelligence
AI feels weightless on screen, but its electricity, water and infrastructure demands are real. What do the latest figures tell us—and who should bear the costs?
El Niño: The Pacific Climate Cycle That Can Change Weather Around the World
El Niño begins in the tropical Pacific, but its effects can reach across the planet. We examine how ENSO works, what it can and cannot cause, and why the powerful 2026 event matters.
The Carrington Event: What Happens When the Sun Attacks Earth?
In 1859, a solar storm sent electrical currents surging through telegraph systems around the world. What would happen if a storm of similar magnitude struck our technology-dependent civilisation today?
Comets: Cosmic Visitors, Omens and What Science Reveals
Explore what comets are, Halley’s testable prediction, the comet of 1066 and the difference between a celestial spectacle, an omen and an impact risk.
Solar Flares: What Space Weather Really Means for Earth
Discover how solar flares, coronal mass ejections and geomagnetic storms differ, what they can affect on Earth, and how to read space weather warnings.
Climate Change: What the Numbers Actually Tell Us
Learn how to read our climate meter: temperature anomalies, reference periods, monthly updates and the difference between a single reading and long-term warming.
What the Doomsday Clock Actually Measures
What does 85 seconds to midnight mean? Explore who sets the Doomsday Clock, the risks it considers and why it is a warning rather than a countdown.
Signs in the Heavens and Earth
Auroras, eclipses and earthquakes show what science can explain, what it can predict, and where uncertainty remains.