Add Yahoo as a preferred source to see more of our stories on Google. Hank Green’s latest SciShow video, "Physicists Don’t Understand Why Knitting Works," sparked frustration among knitters online.

(via SciShow) Most science experiments take a few months or years, but some take a whole lot longer. Here are six of the longest-running experiments of all time, including one expected to last 500 ...

It seems like birds would want to hide their eggs, but there are hundreds of species that lay blue to blue-green eggs. Thanks to some clever experiments, we’re finally starting to understand why birds ...

(via SciShow) Astronomers might not know what dark matter is made of, and they might not be able to see it, but they know that it exists. So over the decades, they've proposed a lot of experiments ...