"Google Earth puts a planet's worth of imagery and other geographic information right on your desktop. View exotic locales like Maui and Paris, as well as points of interest such as local restaurants, hospitals, and schools. Google Earth combines satellite imagery, maps, and the power of Google Search to put the world's geographic information at your fingertips. With Google Earth you can fly from space to your neighborhood--just type in an address and zoom right in, search for schools, parks, restaurants, and hotels. Get driving directions, tilt and rotate the view to see 3D terrain and buildings, save and share your searches and favorites and even add your own annotations."

"MacAstronomica generates sky maps at any time, from anywhere on Earth. The maps show all the planets and stars visible to the naked eye, as well as some galaxies and nebulas, the Ecliptic, meteor showers and the Milky Way. Constellations are drawn in their traditional form, and a table lists the visible objects. MacAstronomica also features an Orrery that simulates the solar system, a sundial/moon dial. The interface is very elegant and easy to use. Version 2.0.5 integrates eSellerate's real-time payment processing system. Users can now buy the full version in just a few seconds, any time of the day or night."

"Celestia is a free real-time space simulation that lets you experience our universe in three dimensions. Unlike most planetarium software, Celestia doesn't confine you to the surface of the Earth. You can travel throughout the solar system, to any of over 100,000 stars, or even beyond the galaxy. All travel in Celestia is seamless; the exponential zoom feature lets you explore space across a huge range of scales, from galaxy clusters down to spacecraft only a few meters across. A 'point-and-goto' interface makes it simple to navigate through the universe to the object you want to visit."

"iRad is a DICOM workstation written in Cocoa for MacOSX. Using Quicktime, openGL, and mySQl iRad aims to provide an easy and efficient way to review medical images from CT, MRI, ultrasound, and other DICOM sources such as angiography and Nuclear medici. Includes mproved Integration with iRad database and Query/retrieve tool."

"SETI@home is a scientific experiment that uses Internet-connected computers in the Search for Extraterrestrial Intelligence (SETI). You can participate by running a free program that downloads and analyzes radio telescope data."