Do you ever think about the spacecraft and satellites we’ve left up in space? What happens to them?
Author: undumb
Why is the sky blue?
It’s a question we’ve all asked at one point. But how many people do you know who can tell you why the sky is blue? Like a lot of science: it’s easy to understand but hard to explain.
What is inauguration day?
Every four years, the United States of America inaugurates its new president.
What is democracy?
These days, it’s important to understand how democracies work and what the differences are among them. Learn an overview in this video.