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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Citrusy Tofu and Rice Salad Recipe

Democracy Dies in Darkness Start Cooking Comment on this storyReviews Add to your saved recipes Save The sweet-and-sour sesame citrus dressing coats tofu with a mixture of Asian flavors from soy sauce, ginger, toasted sesame oil and scallions. Prepare this summery salad with whichever greens are freshest at the market. The oils will separate…

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Neutron star merger hiding in mini-galaxy could answer 2 big astrophysics questions

Astronomers have spotted a colossal explosion coming from a pair of merging neutron stars lurking within the remnants of an ancient galaxy pileup. The unexpected “collision within a collision” could help answer “not one, but two” major astrophysics questions, the researchers claim. In a new study, published March 10 in The Astrophysical Journal Letters, an…

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