OStatic

If the recent series of space shuttle missions has piqued or renewed your interest in space, you'll need some astronomy software to help you navigate the skies from your backyard. There are several terrific open source applications available for users of all levels of experience, from casual and novice users to astronomy buffs with a secret desire to become an astronaut.

Here are my four favorite apps to help you find your way around the skies and stars:

Space Shuttle Atlantis launched today on its way to the final Hubble telescope repair mission. There's an old joke originally quipped by astronaut Wally Schirra that NASA spacecraft really is a modern marvel, especially when you consider it's built by the lowest bidders. It's the government's tight purse strings, however, that has helped open source software put its fingerprints all over the space agency.

Seth Godin has some advice to marketeers and businesses that open source proejcts should take to heart as well. Godin writes today about embracing the lifetime value of a customer. Open source projects may not have customers, but it pays to think about the lifetime value of users as well.

Godin writes Instead of comparing what you invest to the benefit you receive from the first bill, the first visit, the first transaction, it's important to not only recognize but embrace the true lifetime value of one more customer.

Even though it's a point release, the latest Amarok comes with some major new features and all the benefits of the 2.2.0 release. Dubbed Weightless, the 2.2.1 release is full of bug fixes and polishing from 2.2.0 release as well as improvements to music management, podcasts, and the ability to update Amarok scripts.

Amarok is already speedy when processing large media collections, but this release includes a tweak to take it up a notch. In the past, Amarok would scan an entire directory -- including sub-folders -- when the main directory had changed. Now Amarok can just breeze through the main directory if the subdirectories haven't been modified, making it even faster. And it's plenty fast already: I've passed a 57GB collection through Amarok in just a few minutes.