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 ...

You probably think of willpower as whether or not you're going to reach for that second piece of pie—but according to psychology, it's a little bit more complicated! Learn how willpower and ...

(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 ...