Where Has All the Helium Gone?
What is helium? Helium is an element that can be found on Earth and in space. On Earth, helium is present in gas form. It is made when other materials break down. In space, helium … Read more
What is helium? Helium is an element that can be found on Earth and in space. On Earth, helium is present in gas form. It is made when other materials break down. In space, helium … Read more
Since June 2019, pro-democracy protestors have held weekly demonstrations in Hong Kong like the one shown here. In August, protestors disrupted travel at the Hong Kong International Airport, shutting down the airport for days. The … Read more
What is the flu? The flu is caused by a virus known as influenza. Viruses are particles that work by infecting cells in the body. A virus works by making thousands of copies of itself inside the … Read more
On September 24, 2019, the Speaker of the House of Representatives, Nancy Pelosi, launched a formal impeachment inquiry into President Donald Trump. An impeachment inquiry investigates if the President committed a crime. It could lead … Read more
This year the Spitzer Space Telescope celebrates 16 years in orbit. Spitzer is an infrared telescope that is used to study the early universe. Scientists want to learn about how stars and galaxies are formed. … Read more
A year ago, teen climate activist Greta Thunberg sat alone at the Swedish capital. She had a message for world leaders. Take action on the climate crisis! This year, Thunberg did not protest alone. Millions … Read more
Congress returns from their recess this September. Waiting for them will be one especially serious issue.What can be done to prevent mass shootings? A mass shootingis when someone uses a gun to shoot many people. … Read more
On June 29, 2019, Major General Laura Yeager became the first woman to lead a United States Army Infantry Division. In a ceremony at Joint Forces Training Base in Los Alamitos, California, General Yeager took … Read more
You’ve learned that United States laws are based upon the United States Constitution. But what happens when people disagree about what the Constitution means? That is where the Supreme Court comes in. The Supreme Court … Read more
For the first time ever, Japan will host the G20 Summit. From June 28-29, global leaders will descend upon Japan’s third-largest city, Osaka, to discuss the world’s most important economic issues. The G20 Summit is … Read more
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