sagan predictions

Photo credit: via IslandPalm14/YouTube – Carl Sagan's keynote address at the 5th Emerging Issues Forum at NCSU.

Climate Change, Science

Carl Sagan’s irrefutable 1990 argument for using all U.S. resources to fight climate change

Tod Perry

11/20/2024
An Operation Smile volunteer reverses an oxygen mask so a child with a cleft condition can blow a bubble for the first time in Guadalajara, Mexico. (Operation Smile Photos)

In Partnership With Operation Smile →

Family, Science

How Bubbles Help Kids with Cleft Conditions

Sarah Watts

5/11/2026