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The Milky Way is a thief

We often think of our home galaxy, the Milky Way, as being a self-contained collection of stars, planets, gas and dust. Sure, it’s going to slam straight into the neighboring Andromeda galaxy at >>

Just guess how much the Milky Way weighs

Judging the size of something is often best done when comparing it to other things, but that line of thinking tends to break down when you start talking about objects in space. Earth >>

Man, space is huge

Size is relative. A carpenter ant is huge compared to a regular ant, but it’s still tiny when compared to, say, your foot. The challenge of adequately describing size is even worse when >>