Other Galaxies
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How Far Away are Galaxies?
Well, I’ll give you a spoiler: they’re ridiculously far away. Let’s consider for a moment what a light-year actually means. It sounds like a unit of time, but it’s actually the distance that light travels in one Earth year. Think…
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The Different Shapes of Galaxies
By now, we’ve spent a heck of a lot of time exploring spiral galaxies. It makes sense — they’re certainly the most photogenic. Seriously. Do me a favor and do a quick Google search for galaxies. When I did, nearly…
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A Universe of Galaxies
When the earliest astronomers and philosophers looked up at the night sky, they never could have imagined a sight like this. What if I told you there are only four single stars in this image? That’s right. Four. The rest…
