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.
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.
Discover how solar flares, coronal mass ejections and geomagnetic storms differ, what they can affect on Earth, and how to read space weather warnings.
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 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.
Auroras, eclipses and earthquakes show what science can explain, what it can predict, and where uncertainty remains.