The WRONG image everyone uses for the Boötes Void #shorts

By Dr. Becky

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This is one of my biggest pet peeves as an astrophysicist who does a lot of science communication - I notice things like this that are just wrong that are doing all of you a disservice. This is a real image, it’s of a very cool astronomical object, Barnard 68, it is a Bok Globule - essentially a special type of nebula which is so dense, with so much gas and dust blocking starlight it looks completely dark. And Barnard 68 is only around 400 light years away - astronomically speaking, that’s our back garden - which is why the image of it is really striking. And my big pet peeve is that people constantly use Barnard 68 to represent something completely different known as the Bootes void - a region of space with way less galaxies than normal. Galaxies: entire islands of 100s of billions of stars billions of light years away. And when we map out the positions of those galaxies we see the structure of the Universe pop out looking like a sponge. And like a sponge, you get holes or voids in