Centuries ago, sailors feared not only the storms, but the silence. Drifting beneath a blazing sun near the Tropic of Cancer, they would find themselves trapped in windless waters, known as the ...

Astronomical summer begins tonight, June 20, at 10:42 p.m. Eastern Daylight Time — the moment of the June solstice. At that instant, the Sun will be directly overhead at the Tropic of Cancer, at a ...