World’s largest steam locomotive heads out on tour

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. The world’s largest operating steam locomotive is hitting the road—or tracks. Union Pacific’s Big Boy No. 4014 is heading out on its first coast-to-coast steam tour to celebrate the United States’ 250th anniversary. The first leg begins on March…

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11 wild photos show the Amazon River in its glory

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. It’s the longest river in the world, full of unique creatures, weaving and winding 3,700 miles across lush rainforests and three countries. The vital Amazon River is a lifeline for flora and fauna alike. The mighty river is celebrated…

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