News tagged with arms

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 ...

Oct 09, 2014
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Alexander Gerst set for spacewalk

ESA astronaut Alexander Gerst has spent four months in the relative safety of the International Space Station but on Tuesday he will venture into open space with NASA astronaut Reid Wiseman on a seven-hour ...

Oct 03, 2014
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How to grip an asteroid

For someone like Edward Fouad, a junior at Caltech who has always been interested in robotics and mechanical engineering, it was an ideal project: help develop robotic technology that could one day fly on ...

Oct 21, 2014
5 / 5 (1) 0