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Space

Alien Comet May Have Infiltrated the Solar System 208

New Scientist has a piece about Comet Machholz 1, whose uncommon molecular composition suggests, but does not prove, that it may be an interloper from another star system. "Comet Machholz 1 isn't like other comets. David Schleicher of the Lowell Observatory in Flagstaff, Arizona, measured the chemical makeup of 150 comets, and found that they all had similar levels of the chemical cyanogen (CN) except for Machholz 1, which has less than 1.5% of the normal level. Along with some other comets, it is also low on the molecules carbon-2 and carbon-3."
Encryption

Google's Obfuscated TCP 392

agl42 writes "Obfuscated TCP attempts to provide a cheap opportunistic encryption scheme for HTTP. Though SSL has been around for years, most sites still don't use it by default. By providing a less secure, but computationally and administratively cheaper, method of encryption, we might be able to increase the depressingly small fraction of encrypted traffic on the Internet. There's an introduction video explaining it."

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