A high-precision view of the sun
Before taking off to ISS, a measuring device was calibrated at PTB
19.07.2007
Full text of the scientific news:
http://www.ptb.de/de/aktuelles/archiv/nachrichten/2007/_sonne.html
Contact:
Peter Sperfeld,
PTB Working Group 4.11,
E-Mail: peter.sperfeld@ptb.de