This object that looks like the Death Star from Star Wars is actually Mimas, one of Saturn’s moons.

It was formed when an asteroid slammed into Mimas long ago.

If the asteroid had been just a bit larger, the impact would likely have shattered the moon completely.

When the planet knows you're watching and tries to look normal.

Gene expression (that is, how actively they work) can change over the course of a lifetime - depending on stress, diet, physical activity and even the weather.
So if you're lying in a hammock, don't be too quick to blame yourself. You may just be triggering an epigenetic repair program.

Why did medieval people sleep twice a night? Before electricity, biphasic sleep was normal: waking mid-night to pray, read, or even have sex. Scientists found this boosts melatonin and reduces stress. Churchill and Da Vinci did it—maybe your creativity also peaks at night?

This little thing started the First World War, which claimed millions of lives. It's a Browning-designed FN Model 1910. It was used by Gavrilo Principle from Black Hand organization, to shoot Archduke Franz Ferdinand in 1914. This event triggered the beginning of World War I.

In the last days of December 1249, the knights successfully celebrated the successful start of the Seventh Crusade. They had managed to capture half of Egypt. Unfortunately, Muslim army pulled to Egypt, surrounded the knights and gave them a terrible defeat.

Quetzalcoatlus.
It's a giant pterosaur. It lived in what is now America. Its wingspan reached a fantastic 15 meters!
Quetzalcoatl got his unusual name in honor of the Aztec god.
But despite its gigantic size, Quetzalcoatl fed mainly on small animals.

There is a town called Centuripe in Sicily. If you take an aerial photo, you can clearly see that the town is shaped like a person.
This was not done on purpose. The city was built with the landscape and the development of new land in mind.

This picture is from Life magazine, 1946.

It's called the 52-20 Club. These young men were said to be members of what was called the 52-20 Club.

They were ex-servicemen who were paid $20 each for 52 weeks while they adjusted to life in the post-war era.

A French girl angrily kicks a passing German soldier. Photo from Life magazine, September 1944.

This is a prisoner of war being escorted to a camp after being arrested.

After Paris was liberated by the Allies in August 1944, there were several victory marches along the Champs-Elysees.
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Why do you think coins have ridged edges?

It was suggested by the famous physicist Isaac Newton.

Cheaters cut off the edges of the coins, melted them down and sold them. A lack of ribbing meant that the coin had been cut. And the number of crimes decreased dramatically.

The photo shows the shortest river in the world.
The Kuokanjoki River in Finland is considered the shortest river in the world. It is 3.5 meters long and 1.5 meters deep.
The river connects two lakes - Sumiainen and Keitele. Despite its short length, there is a bridge across the river.