The world's oldest known wild bird, an albatross named Wisdom, has returned to her nesting place in the Midway Atoll. The 68-year-old bird has just laid another egg.
A Chinese scientist says he has edited the DNA of twin baby girls. If true, the news is a worrying change from the way scientists usually work with DNA.
This week is Computer Science Education Week. During the week, students around the world will be taking part in an "Hour of Code" and learning a little about programming computers.
Last week, hundreds of whales died by swimming onto land in New Zealand. It is not unusual for whales to do this, but this time there were several events in a few different places.
On Friday, thousands of students across Australia skipped school to take part in huge protests. They want the government to treat climate change like an emergency and stop burning oil and coal.
George Herbert Walker Bush, the 41st president of the US, died Friday at age 94. Mr. Bush was president for one term, leading the US through a time of huge world changes.
Six doctors have gone through an unusual experiment to answer a question often asked by parents of young children: how long does it take a small plastic toy to pass through the body?
When the Dutch government decided to send a family back to a dangerous situation in Armenia, Bethel Church found an unusual way to help: by holding church services around the clock.
As people become more aware of the problems caused by plastic pollution, governments and businesses are focusing more and more on ways to reduce "single-use" plastics.