The headlines are scary: “Moon to turn blood red Tuesday.” But don’t worry – the reddish hue is just the result of a rare total lunar eclipse. The total lunar eclipse will pass over the U.S. in the ...

We've heard a lot about the red moon lately, but what exactly is it? What makes the moon red?

Tonight's blood moon is Earth's last total lunar eclipse until 2028. Some 2.5 billion people can watch it live, but UK stargazers must settle for livestreams as the moon stays below the horizon.