Did asteroid strikes during the earth's youth spawn the earliest fragments of today's landmasses?
Worry has focused on the U.S. versus Russia, but a regional nuclear war between India and Pakistan could blot out the sun, starving much of the human race
Online fantasy games enable developing world entrepreneurs to make a living by trading stashes of make-believe gold for hard cash
Designers are pushing all the boundaries to make integrated circuits smaller, faster and cheaper
- From the Editor
- Anti Gravity
- 50, 100 & 150 Years Ago