What is the ionosphere? (And who is Steve?)

Where Do Vaccine Doses Go, and Who Gets Them? The Algorithms Decide

Shepard put golf on the moon 50 years ago. Apollo 14 commander Alan Shepard and his crew brought back about 90 pounds of moon rocks on Feb. 6, 1971. Left behind were two golf balls that Shepard, who later described the moon's surface as "one big sand trap," hit with a makeshift 6-iron.

Abraham Twerski, Who Merged 12 Steps and the Torah, Dies at 90