Carnival of Space 107

Carnival of space 107 is up at Innumberable Worlds

This site covered the building of a prototype for 15-200 kilometer tall towers using existing materials. These can become the legs for a space pier.

Bad Astronomy tells the story of the Helix Nebula.

Centauri Dreams covers the intensified search for planets around Alpha Centauri

Cheap Astronomy looks at the the details of how the Global Positioning System works.

The Universe Today covers the discovery of the first extra-galactic planet.

Check out the Carnival of space 107 at Innumberable Worlds for a lot more.