Intuitively, we all know that when we see an image of an object, it could either be large and far away or small and close by. Only with a three-dimensional measurement can we actually know what's ...

The Resistance is trying to make a quick getaway before the First Order arrives. Then—boom! It's too late. They're already here—two Star Destroyers just arrived near the planet in space. This is the ...

All three of these astronomical alignments provide astronomers with opportunities to study our solar system and galaxy. And, all three involve shadows! What’s the difference between the three, you ask ...