Sun

Five examples of what some researchers have observed and recorded in the past few decades.

• By Shreya Dasgupta

Researchers link risky choices to unexpectedly positive circumstances, like sports wins and sunny days.

• By Nathan Collins

Although their ranks have diminished, the Flat Earth Society is alive, the planet is wrapped in an ice wall, and the sun and the moon are the exact same size.

• By Katie Heaney

For starters, let's stop calling it "Earth Day."

• By Ryan O'Hanlon