How do we know what asteroids are made out of?

Understanding the make-up of asteroids also matters for the future of exploration: some asteroids may contain metals, ...

To Many, These Buildings in Japan Are Magnificent. They’re Doomed Anyway.

Even buildings as remarkable as Mr. Kikutake’s Miyakonojo Civic Center, with its segmented roof arched like a baby stroller, fell prey. Similarly, Japan’s shrinking population has stimulated the ...