Walking 10,000 steps should burn 400-500 calories, but here's why that might change
M uch like how long it takes to walk 10,000 steps and how far you’ll walk over 10,000 steps, how many calories you’ll burn ...
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Star Trails (IMAGE)
This artist's concept visualizes stars near the center of our Milky Way galaxy. Each has a colorful trail indicating its speed –– the longer and redder the trail, the faster the star is moving. NASA ...