A buoyancy problem involving a ping pong ball, an iron ball, a few strings, some water, and a set of scales is causing a few arguments on Reddit where it was posted. "Where would the scale tip?

In honor of Mercury retrograde and pursuit of “high sexual communal strength,” Levi shares five sex positions to make this retrograde season more pleasurable for one and all. “If Mercury ...

These galaxies fall into a pattern: the large-scale structure of the universe. This structure is a huge web shaped by gravity, with most galaxies and galaxy clusters lying along the strands. On even ...