Ali Hamza 
What would happen if humans evolved to live underwater
We often think of the ocean as a place to visit. We go for a...
Could a human survive in space without a spacesuit even for a second
We see it all the time in science fiction movies. An astronaut’s helmet cracks, or...
How does laughter actually affect your body and mind
It starts as a small bubble in your chest, a feeling that’s hard to hold...
What happens to the brain during deep meditation
It’s a quiet morning. The world is still asleep, and you’ve found a comfortable spot...
Could Human Senses Be Upgraded Beyond Natural Limits?
We experience the world in a very specific way. Our eyes catch the light of...
How does the immune system know which cells to attack?
Your body is like a bustling city, with trillions of cells working together to keep...
Could Science Ever Let Us Upload Our Minds Into Machines?
The idea has been a favorite in science fiction for decades. A person lies down,...
What makes people feel emotions so differently
You’re sitting in a movie theater, watching a sad scene. Next to you, your friend...
How does the human heart keep beating without stopping
There’s a quiet, steady rhythm happening inside your chest right now, a rhythm that started...
Why do humans need sleep and what really happens when we dream
Every single one of us will spend about a third of our entire lives doing...
What would happen if all atoms in your body suddenly stopped moving?
There’s a quiet hum to being alive that we never really notice. Your heart keeps...
Could We Ever Run Out of Energy in the Universe?
Think about a bright summer day. The Sun is shining, plants are growing, and you...
How do scientists trap light inside a box
Light is the fastest thing we know of. It zips from the Sun to Earth...
What would happen if all atoms in your body suddenly stopped moving?
There’s a quiet hum to being alive, one we almost never notice. Your heart keeps...
How do scientists prove something is true
Think about the last time you were absolutely sure about something. Maybe you were sure...