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Cavalier Zee

@cavalierzee / cavalierzee.tumblr.com

Male, Sunni Muslim, Egyptian-American. This blogs posts will cover the following categories: 1. Science, Healthcare. 2. Technology 3. Poetry, Quotes, Proverbs, Wisdom, Literature. 4. History 5. Islam 6. Culture and Geography 7. Politics, Diplomacy, Strategy 8. Warfare 9. Music 10. Comedy 11. Sports
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~ Dark Matter Structure Revealed By Hubble Space Telescope ~ Astronomers using the NASA/ESA Hubble Space Telescope have studied a giant filament of dark matter in 3D for the first time. Extending 60 million light-years from one of the most massive galaxy clusters known, the filament is part of the cosmic web that constitutes the large-scale structure of the Universe, and is a leftover of the very first moments after the Big Bang. If the high mass measured for the filament is representative of the rest of the Universe, then these structures may contain more than half of all the mass in the Universe. The theory of the Big Bang predicts that variations in the density of matter in the very first moments of the Universe led the bulk of the matter in the cosmos to condense into a web of tangled filaments. This view is supported by computer simulations of cosmic evolution, which suggest that the Universe is structured like a web, with long filaments that connect to each other at the locations of massive galaxy clusters. However, these filaments, although vast, are made mainly of dark matter, which is incredibly difficult to observe. The first convincing identification of a section of one of these filaments was made earlier this year. Now a team of astronomers has gone further by probing a filament's structure in three dimensions. Seeing a filament in 3D eliminates many of the pitfalls that come from studying the flat image of such a structure. • http://www.spacetelescope.org/news/heic1215/

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US Navy's PlaceRaider Malware Turns SmartPhone Into A Spy

Malware Produces 3D Models Of Your Phone's Surroundings

Researchers from the U.S. Naval Surface Warfare Center have developed malicious software that can remotely seize control of the camera on an infected smartphone and employ it to spy on the phone’s user.

The malware, dubbed “PlaceRaider,” “allows remote hackers to reconstruct rich, three-dimensional models of the smartphone owner’s personal indoor spaces through completely opportunistic use of the camera,” the researchers said in a study published last week.

The program uses images from the camera and positional information from the smartphone’s gyroscopic and other sensors to map spaces the phone’s user spends a lot of time in, such as a home or office.

“Remote burglars” could use these three-dimensional models to “study the environment carefully and steal virtual objects [visible to the camera] … such as as financial documents [or] information on computer monitors,” the researchers reported.

Because users often do not realize that a smartphone is basically a small computer, and because there are few security products available, smartphones are considered highly vulnerable to hackers.

Commercial software, for instance, can turn smartphones into microphones and tracking devices.

But PlaceRaider is the first known example of malware developed to exploit the high-definition cameras that are now ubiquitous on smartphones.

The study was a collaboration between the Navy center team and researchers from the School of Informatics and Computing at Indiana University.

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