News tagged with arms

Team creates Milky Way structure simulations

If you took a photograph of the Milky Way galaxy today from a distance, the photo would show a spiral galaxy with a bright, central bar (sometimes called a bulge) of dense star populations. The Sun—very ...

dateNov 18, 2014 in Astronomy
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Spirals in a galaxy may arise from density waves

It's often said that the shape of a spiral galaxy follows the curve of a golden spiral. You can see this, for example, in the image above. While it's often implied that this curve matches exactly, that isn't ...

dateOct 09, 2014 in Astronomy
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Image: Alexander Gerst conducts spacewalk

ESA astronaut Alexander Gerst spent six hours and 13 minutes outside the International Space Station with NASA astronaut Reid Wiseman on Tuesday, 7 October 2014. This was the first spacewalk for both astronauts ...

dateOct 08, 2014 in Space Exploration
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We need new laws to govern cyberwarfare

President Bush is reported to have said: "When I take action, I'm not going to fire a US$2m missile at a US$10 empty tent and hit a camel in the butt. It's going to be decisive." As the quote suggests, when ...

dateAug 21, 2014 in Security
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