What Is the Meaning of Life? The Big Answers Compared
It might be the biggest question there is, and also one of the oldest. What is the meaning of life? There is no single answer that everyone agrees on, and…
Climate Change vs Global Warming: What Is the Difference?
People often use “climate change” and “global warming” as if they mean the same thing. They are closely linked, but they are not identical. So what is the difference between…
Zealandia: The Lost Continent Hidden Under the Pacific
Zealandia is a mostly submerged continent in the south-west Pacific, and New Zealand sits on its highest parts. About 94% of it is underwater, and it covers roughly 4.9 million…
What Is a Rainbow? The Science You Can Test in Your Backyard
What is a rainbow? It’s sunlight that has been bent, reflected and split into colours by countless drops of water, reaching your eyes at a precise angle. You don’t have…
Red Sky at Night, Sailors’ Delight: Is It True in Australia?
“Red sky at night, sailors’ delight. Red sky in the morning, sailors’ warning.” Long before weather apps, people forecast the weather by looking up, and this rhyme is one of…
Why Is the Sky Blue? And Why Is It Red at Sunset?
Look up on a clear day and the sky is an enormous blue dome stretching from horizon to horizon. Yet there is nothing blue about sunlight itself; it looks white,…