Prisons and jails have a long history, but they weren’t always used for the same kinds of punishment.
Starting at the surface, you would have to dig nearly 2,000 miles before reaching the Earth’s core. No one could survive that trip – and the 10,000-degree F heat once there would vaporize you anyway.
To understand this question, we need to travel back in time.
Some animals have belly buttons that are easy to see, but others have ones that are more difficult to spot.
Rainbows are made when water droplets split light up into colours.
Astrology and astronomy were once practiced side by side by scientists like Galileo and Kepler. And they’re more similar than you might think.
Lots of kids wonder about this. Here are some of the basics.
It takes a lot of steps – and help from other people – to make a physical book you can hold in your hands.
Pictures and sound, flying through the air to a box in your house? Back in the 1940s, it seemed like a miracle.
What’s true and what’s not? An expert in media literacy explains how to evaluate information.
Many galaxies are too faint or small for us to observe easily – but science can help us work it out.
A mix of New England and British traditions and historical events led to the particular poultry you’ll find on Thanksgiving tables everywhere.
How does flowing water make electricity? An engineer explains hydroelectric generation.
Geographic, cultural and political identity are all part of being Indigenous.
Believe it or not, this sort-of happened before in Earth’s history – and now we have the Moon.
Snails use their slime to help them move, stop them drying out and to scare off predators.
From its origins as a Celtic pagan ceremony to its celebration of all things gruesome and ghoulish today, Halloween has been reinvented over the centuries.
Do you know someone who’s had lots of birthdays? That doesn’t always make them old.
The US and the Soviet Union never engaged in direct combat, but their influences were felt worldwide, including in armed conflicts involving other nations.
The rise of e-commerce means billions of packages are delivered in the US each year. That creates traffic and pollution, but urban freight researchers are finding better way to get goods to customers.