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Why does time change when traveling close to the speed of light? A physicist explains

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Why does time change when traveling close to the ... read more

The Physics Of Lightspeed Travel: Why It May Remain Science Fiction

Space -- the final frontier. These are the words that introduce every episode of classic "Star Trek," the show that essentially popularized the concept of traveling the stars at the speed of light – ... read more