What is the temperature in space? It's a far more complicated question than it seems. Because space is considered a vacuum, which means it's empty, it has no temperature. But the objects traveling ...

Next time you need a fun fact to impress your friends, try this one: the coldest temperature ever reached in the known universe occurred right here on Earth. In 2021, scientists at the University of ...

The Sun looks like a warm yellow sphere with a surface covered with glowing messy hair. The yellow glow extends to the edges of the image, with some regions brighter than others. Many bright yellow ...

Space seems like it should be blazing hot with the Sun shining nonstop, yet astronauts and spacecraft deal with freezing cold. The reality is more complicated than distance alone because how heat ...