Planet Earth
Mother Earth, Gaia, the third rock from the Sun - whatever you call it, this 4.5 billion-year-old planet is the one that we and all known living creatures call home.
Could marine cloud brightening help us fight climate change?
Is the future of keeping Earth cool floating above us?
What is Mexico's blue hole?
The world's deepest marine sinkhole is at least 420m deep but remains a mystery to scientists.
Are we the only species to have been through a stone age?
Who is the originator of the stone tool? The evidence leaves a confusing mystery.
The strange science of how fog forms
Fog occurs when air saturated with water vapour is cooled suddenly, and there are several different ways this can happen.
This ‘internet of animals’ could unlock the secrets of nature’s greatest superpowers
Scientists are using electronic tags and satellites to track wild animals and build a data network.
The hidden climate tipping point scientists worry most about
With collapsing ice sheets, loss of the Amazon rainforest, and melting permafrost, key parts of Earth’s climate system are in trouble.
This very goofy fish is a certified freak, according to science
The ocean sunfish is a funny-looking guy. But that isn't even the weirdest thing about him.
How deep can a penguin dive?
Penguins are skilled divers, transitioning from land to water with smooth movements. But what's the deepest a penguin can actually dive?
Here's how scientists are rewriting the origin story of Earth & life itself
Although key details are missing from the story of how our Solar System formed, recent discoveries are helping scientists fill in the blanks and understand how rare it is.
8 incredible animals alive today that survived the dinosaurs
Meet the 'living fossils' that give us a glimpse into life in the distant past
Top 10 biggest statues in the world
The tallest monuments found on planet Earth.
How many countries are there in 2025?
Here's the surprisingly complex answer to the simple question.
Top 10 largest countries in the world 2025
Listed by total area, these are the biggest countries on Earth in 2024.
Top 10 smallest countries in the world
Listed by population, we explore the tiniest countries on planet Earth in 2023.
What is the coldest city in the world in 2025?
The world's coldest city in winter is warmer in London during the summer.
Top 10 hottest places on Earth 2025
Ranked by highest recorded temperatures, these are our planet's ultimate hot spots.
How the ancient Amazonian 'dark earth' could save Earth’s future
The mysterious, nutrient-rich soil of the Amazons might hold the secret to fight climate change.
The deepest hole on Earth: Inside the race to harness unlimited power from our planet's core
While harnessed geothermal heat help plants grow at the Eden Project, advanced new technology could turn it into a renewable source of clean, green energy for all.
Here's what causes Europe's bizarre 'blood rain'
Each year, the sky turn orange in the Canary Islands.
Top 10 largest rainforests in the world 2025
Rainforests are often referred to as the 'Lungs of the world'. But which is the biggest?
Top 10 most dangerous roads in the world 2025
Fasten your seatbelts and hang on for dear life.
Climate change will soon make Earth's days longer. Here’s what that means for the planet
Two recent studies have shown that global warming is changing things in ways we couldn’t imagine
Top 14 largest cities in the world
Our planet is becoming increasingly populated, as illustrated by these megacities.
What causes rainbow clouds?
Have you ever managed to catch a glimpse of one?