Does your password pass muster?

"Create a password" is a prompt familiar to anyone who's tried to buy a book from Amazon or register for a Google account. Equally familiar is that red / yellow / green bar that rates the new password's strength. But when ...

Computerized osteoporosis detection

A computerized approach to examining patient bone X-rays for diagnosis of osteoporosis could side-step the subjectivity associated with visual examination, according to a new research paper in the International Journal of ...

The remarkable jet of the quasar 4C+19.44

Quasars are galaxies with massive black holes at their cores. So much energy is being radiated from near the nucleus of a quasar that it is much brighter than the rest of the entire galaxy. Much of that radiation is at radio ...

Going super small to get super strong metals

You can't see them, but most of the metals around you—coins, silverware, even the steel beams holding up buildings and overpasses—are made up of tiny metal grains. Under a powerful enough microscope, you can see interlocking ...

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