PAMELA
The first satellite built to detect antimatter in space launched safely yesterday, boosting the chances of identifying the mysterious 'dark matter' that makes up more than 80% of the stuff in the Universe.
The PAMELA probe (Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics) took off from the Baikonur Cosmodrome in Kazakhstan on 15 June, carrying instruments that will catch antiprotons and positrons, the mirror particles of protons and electrons.
Full story here:
http://www.nature.com/news/2006/060612/full/060612-15.html