Scientific American Magazine

To prevent an asteroid from hitting Earth, a space tug equipped with plasma engines could give it a push

For robot designers these days, small is beautiful

The reasons that we sleep are gradually becoming less enigmatic

The physicist and best-selling author demystifies the ultimate theories of space and time, the nature of genius, multiple universes, and more

Just when scientists thought they had DNA almost figured out, they are discovering in chromosomes two vast, but largely hidden, layers of information that affect inheritance, development and disease

Future aircraft may fly more like birds, adapting the geometries of their wings to best suit changing flight conditions

Stunning finds in the Republic of Georgia upend long-standing ideas about the first hominids to journey out of Africa