An eye-opening astronomy video—one of many in recent years—has been making the rounds of Facebook. It brings to mind a piece of Hasidic wisdom uttered when the observable universe was far smaller than now. Both pose fascinating questions regarding how we can make sense of humanity’s place in the cosmos. This particular animated video beautifully…

Read More

Those of us who saw the late Cornell astronomer Carl Sagan on TV remember the glee with which he emphasized that the universe contains stars numbering “billions and billions.” If only a small percentage host habitable planets like Earth, Sagan proclaimed, life must exist elsewhere. Now, more refined numbers are coming in. In Tuesday’s San…

Read More