NASA's Balloon Program is preparing new missions, including one designed to investigate the birth of our universe. And on a less scientific note: How gorgeous is this balloon?
Major airports around the world will see more frequent flight restrictions in the coming decades because of increasingly common hot temperatures, say scientists.
Iconic Mount Rainier in the U.S. state of Washington, with a glorious summer Milky Way above. The light strings on the mountain are climbers! Photo: Gary Peltz
