June 30, 2008
Crystals of pure silicon have been ground into nearly perfect spheres by master craftsmen
Science editor Alan Boyle's Weblog: PlanetSpace may not have kept up with its original spaceship-building plans, but it's moving ahead with concepts for a new suborbital spaceship as well as an orbital launch system.
In 1908, a huge explosion devastated a remote region of Siberia. A century later, its cause remains a mystery. investigates (full text available to subscribers)
June 28, 2008
Crewed repair missions are wasteful and costly, say aerospace engineers
June 27, 2008
The SOHO spacecraft discovered its 1,500th comet this week, making the observatory the most successful comet detector.