That black hole would be of the supermassive variety, similar in heft to Sagittarius A*, the monster that lurks at the heart of our Milky Way galaxy. But what if we had a run-in with a much ...

The calculator is fascinating. For a quick test, we had a very small (and unrealistic) black hole, 14 times the mass of the Earth, cannibalizing our planet.

Graphing calculators have apparently upped their style game since I graduated high school. Texas Instruments introduced a limited edition TI-84 Plus CE Graphing Calculator today that comes in gold ...