"Two spacecraft are due to launch this week, both named after influential German-born scientists: Max Planck, the father of quantum theory, and William Herschel, a British astronomer who discovered infrared radiation."
"The Planck and Herschel missions, both led by the European Space Agency (ESA), will share an Ariane 5 rocket as they lift off from Kourou, French Guiana, on 14 May."
"Both craft will also orbit roughly the same place in space — the second Lagrangian point, which is 1.5 million kilometres away on the side of Earth facing away from the Sun. However, the telescopes will orbit at different distances from this spot to rule out any chance of a collision."
To read the remainder of this article written by Katherine Sanderson go to:http://www.nature.com/news/2009/090511/full/news.2009.466.html