Understanding a Changing World
Science has transformed our understanding of the planet, the universe and humanity’s place within it. From climate and natural disasters to artificial intelligence, space exploration and emerging technologies, we examine the discoveries and developments that could shape our future—and the signs of a world undergoing extraordinary change.
Earth in Transition
Our planet is constantly changing. Earthquakes, volcanic eruptions, extreme weather, shifting climates and changes within the oceans and atmosphere reveal the immense forces shaping the world around us. Scientific observation allows us to understand these processes more clearly, while also helping us assess the risks they may present to societies around the globe.
Technology and the Future
Artificial intelligence, biotechnology, robotics and increasingly powerful computer systems are changing society at remarkable speed. These technologies offer enormous possibilities, but they also raise profound questions about security, employment, human identity and the degree of control we may eventually hand to machines.
Astronomy & Space
Humanity is looking farther into space than ever before. Powerful telescopes are revealing distant worlds, missions are returning to the Moon and preparations for future journeys to Mars continue. At the same time, scientists monitor asteroids, solar activity and other cosmic phenomena that remind us that events far beyond Earth can influence the future of our planet.
Science & Signs Articles
Explore Astronomy & Space for our growing collection on comets, gravity, solar activity and life beyond Earth.
Latest Articles
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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.
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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.
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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.
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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…
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Signs in the Heavens and Earth
Auroras, eclipses and earthquakes show what science can explain, what it can predict, and where uncertainty remains.