On Saturday, hundreds of thousands of people protested for stronger gun laws in the US. Over 800 protests were held in cities around the world.
People, businesses, and governments around the world will turn their lights off for "Earth Hour" on Saturday. The event is meant to remind people to take action to work on climate change.
The UK is separating from Europe and they are changing their passports to celebrate this. But the UK will depend on a European company to make their new passports.
A Russian man who was a spy for England was poisoned in early March. England blames Russia, but Russia says it did not poison the man. Problems between the two countries have gotten much worse as a result.
A man in Romania went to court to try and prove that he was alive. Sadly for him, the court did not agree.
Scientists studied bottled water from around the world. They found tiny bits of plastic in nearly all of it. No one knows yet how the human body deals with these bits of plastic.
Vladimir Putin has been elected to lead Russia for the fourth time. If he finishes the next six years as president, he will have led Russia for almost 25 years.
On Saturday, the island of Bali in Indonesia turned off the Internet for phones for 24 hours. They did this because March 17 this year was a holiday called Nyepi - a day of silence.
A plane in Siberia carrying around $156 million in gold bars had a problem as it took off. A door broke open and almost 7,000 pounds of gold bars fell out of the plane.
Clocks all over Europe have been running up to six minutes slow recently. Why? The surprising answer is because Serbia and Kosovo are not getting along.