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universe520 writes:
Using neat imaging technology that allows them to determine the chemical compound of a substance by looking at the light reflected from it, scientists have spotted the traces of flowing water on Mars. By looking at the dark streaks on some photos of Mars, Lujendra Ojha from Georgia Tech has found compounds that are made in liquid water—meaning that water may be trickling down those streaks when the climate is just right.
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astroengine writes:
Scientists have solved the mystery of why the comet being studied by Europe’s Rosetta spacecraft is shaped like a rubber duck — it started off as TWO separate comets, a new study shows. Ever since Rosetta sent back pictures of its twin-lobed target more than a year ago, scientists have debated whether the comet, known as 67P/Churyumov-Garasimenko, could be the result of two comets that merged together during the solar system’s early years. The other option is that the so-called “neck region” between 67P’s two lobes experienced some particularly active and still unexplained outgassing over the eons, eroding its more spherical shape into a body that resembles a rubber duck. “Our study rules out the possibility that the comet shape is the outcome of erosion,” planetary scientist Matteo Massironi, with the University of Padova in Italy, wrote in an email to Discovery News. Rather, the neck region is where two independent bodies collided, analysis of high-resolution images taken by the orbiting Rosetta spacecraft shows.
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Frosty Piss writes:
When people say the feds are monitoring what people are doing online, what does that mean? How does that work? When, and where, does it start? Pete Ashdown, CEO of XMission, an internet service provider in Utah, knows. He received a Foreign Intelligence Service Act (FISA) warrant in 2010 mandating he let the feds monitor one of his customers, through his facility. He also received a broad gag order. Says Mr. Ashdown, "I would love to tell you all the details, but I did get the gag order... These programs that violate the Bill of Rights can continue because people can’t go out and say, This my experience, this is what happened to me, and I don’t think it is right." In this article, Mr. Ashdown tells us about the equipment the NSA installed on his network, and what he thinks it did.
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phyr writes
"The European Space Agency (ESA) has released its Next ESA SAR Toolbox (NEST) freely as GPL for Linux and Windows. It provides an integrated viewer for reading, calibrating, post-processing and analysis of ESA (ERS 1&2, ENVISAT) and 3rd party (Radarsat2, TerraSarX, Alos Palsar, JERS) SAR level 1 data and higher. ESA has chosen to distribute the software as fully open source to allow the remote sensing community to easily develop new readers/writers and post-processors for SAR data with their NEST Java API. The software provides both a command line interface and GUI for all features including data conversion, graph processing, coregistration, multilooking, filtering, and band arithmetic."
