It’s happened. The first children genetically engineered with the powerful DNA-editing tool called CRISPR-Cas9 have been born to a woman in China. Their altered genes will be passed to their …

Today, cryptography has moved beyond the realm of dilettantes and soldiers to become a sophisticated scientific art—combining mathematics, physics, computer science, and electrical engineering. It not only protects messages, but it also safeguards our privacy. From email to banking transactions, modern cryptography is used everywhere.

What is color? It seems like a simple question at first, but when you think about it, the reality of what we’re seeing is a pretty complex situation. Our human eyes sift through a small piece of the vast electromagnetic spectrum and translate it into every color of the rainbow.

“Because it’s there” was George Mallory’s famous explanation for why he risked (and lost) his life trying to become the first person to summit Everest. We don’t all want to …

Astronauts who’ve lived on the International Space Station and “walked” in space tell all: what it’s like to ride on a space ship, and to eat, sleep, exercise, and even do science—in space.

Every generation benefits from the insights and discoveries of the generations who came before. “If I have seen a little further it is by standing on the shoulders of giants,” …