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 ...

dateOct 09, 2014 in Astronomy
shares0 comments 3

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
shares0 comments 0

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 ...

dateOct 03, 2014 in Space Exploration
shares0 comments 0

Will tomorrow's robots move like snakes?

Over the last few years, researchers at MIT's Computer Science and Artificial Intelligence Lab (CSAIL) have developed biologically inspired robots designed to fly like falcons, perch like pigeons, and swim ...

dateSep 16, 2014 in Robotics
shares0 comments 0

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
shares0 comments 1

Swirling electrons in the whirlpool galaxy

The whirlpool galaxy Messier 51 (M51) is seen from a distance of approximately 30 million light years. This galaxy appears almost face-on and displays a beautiful system of spiral arms.

dateAug 20, 2014 in Astronomy
shares0 comments 22