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A Better Way to Shoot Down Spam
Junk mail can now be identified based on a single packet of data.
How to Land Safely Back on the Moon
A hazard-detection system promises safe landings for next-generation lunar explorers.
A Reporter's Moon Trip
The rewards of reporting an epic journey of man are more than the excitement of the moment. The audience shares new perspectives on another world.
Light Repels Light
The repulsive side of an optical force could lead to ultra-fast telecommunications.
Data Overload on Dating Sites
The information overload caused by too much choice could have lessons for other websites.
Who's Typing Your Password?
By watching how passwords are entered, a company hopes to make log-ins more secure.
Catching Spammers in the Act
Researchers show how spammers harvest e-mail addresses and send out bulk messages.
NASA's New Crew Escape System
The next vehicle to carry humans to space will let astronauts safely abort in case of an emergency.
Flaw Opens ATMs to Hackers
A conference presentation would have exposed flaws in some cash machines.
Jul • Aug Issue
Building NASA's Future
The U.S. space agency readies the first test flight of the vehicle destined for the moon.

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