A phone application highlights hot spots and will soon show where different urban "tribes" gather.
Denial-of-service attacks are on the rise, research shows.
An advanced dye boosts the efficiency of dye-sensitized solar cells.
NASA researchers are using smart materials to improve helicopter performance.
New materials from MIT could power laser weapons or give hybrid cars jackrabbit acceleration.
Specially engineered cells arrange themselves into three-dimensional microtissues.
Some say that Twitter may be as important to real-time search as YouTube is to video.
By mimicking nonverbal actions, robots could become better assistants.
A newly made synthetic ribosome is an important step in the quest to create artificial life forms.
Browsers are changing to accommodate powerful applications.