From its 1970 origins to a global movement, Earth Day 2026 highlights the power we all have to protect our planet.
Planet Earth is spinning a little faster today — resulting in one of the shortest days of the year. But the change will be so minuscule you won’t even notice. We’re talking even less time than the ...
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Deep inside Earth ...
The recently spotted asteroid 2025 PN7 appears to be the source of the rumor mill about Earth's supposed second moon. Earth has several quasi-moons that get their name due to the fact that they ...
The Earth’s climate is a dynamic entity, continuously evolving over billions of years with alternating periods of extreme heat and cold. Recent scientific studies indicate that the Earth is subtly ...
The Artemis II crew, fresh off a bold and risky mission that captured the hearts of a nation in tumult, took questions ...
The results of the planet’s first annual physical—a complete health check—are in, and they are alarming. We are deep into the yellow danger zone and moving rapidly towards the red high-risk zone, ...
Researchers have developed a technique for detecting and measuring the concentration of many rare-earth elements in plants, ...
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2 supermassive black holes may collide 100 years from now — and Earth would feel it
In a galaxy 500 million light-years away, two supermassive black holes could merge, spreading gravitational waves across the ...
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