Titan. The most majestic of Saturn’s many moons. And the most promising for life too. It’s got a beautiful view and liquid lakes on its surface. The only...
In 1946, a 17 year old teenager named Willie Francis became part of one of the most disturbing execution cases in American history. After being convicted of murdering a...
4 Volunteers Went 10 Days Without Salt in the 1930s, and They Were Too Tired to Eat
In the 1930s, Dr. Robert McCance of Cambridge University’s Department of Experimental Medicine convinced four people to give up salt completely for ten days. He...
We can build really big things in space. Okay, not that big – yet. But we’ve packed the Earth’s lower orbit with about 5,000 satellites – some...
She had come a long way for the view, and the view was worth it. So she unhooked the harness for a moment, just long enough to get the photograph without a cable in the...
The universe is home to trillions of worlds, but not all planets are created equal. Some are scorching enough to melt rock, others are battered by storms of molten...
Jetpacks have come a long way from the clunky machines once seen in science fiction. One day, they might even become practical enough for short trips. But imagine taking...
Imagine waking up one night and realizing the Moon is simply gone. No warning, no impact, no trace. Just an empty sky where Earth’s closest companion used to be. At...
On average, over 8000 people die each year in the U.S. because they can’t get an organ transplant. What if we could actually rebuild our failing organs? That...
[dx_custom_adunit mobile_id=”RTK_v1lP”] Thomas Edison is one of the most famous inventors in history. He had over 1,000 patents and countless inventions...
When people think about space threats, they usually imagine asteroid impacts, solar storms, or distant supernova explosions. But some scientists warn that the most...
What advice would you give your younger self if you could travel back in time?
What was that? Why is there a hole in my roof? And why am I covered in branches? They’re beautiful. They provide oxygen, and trees remove some harmful gases. But...
Every day, billions of people browse websites, send emails, stream videos, and shop online without giving much thought to what keeps the Internet running. It feels like...
From prehistoric predators and ancient pandemics to volcanic winters and asteroid impacts, Earth’s history is filled with moments so extreme they would be almost...
Black Dolphin is famous for its extreme security, but the prison is only one part of a much larger system. Behind Russia’s prison walls, a long history of harsh...
[dx_custom_adunit mobile_id=”RTK_v1lP”] There are certain days in your life that stand out more than others. You can recall them, as if they happened...
Jupiter is the largest planet in the Solar System. It’s 300 times more massive than Earth. But it’s less dense than our home. With no solid surface, this planet is...
During the Apollo missions in the 1960s, astronauts collected lunar rocks to bring back to Earth, but to lighten their cargo, they left 96 bags of urine and feces on the...
Space is famous for being unimaginably vast. Yet even among its endless distances, there are places that make the rest of the Universe seem crowded. One of those places...

