Alliance Francaise, Dhaka and Bangladesh Astronomical Association jointly organized the 13th National Space Science Training Workshop. The inaugural ceremony of the workshop was held on January 13, 2007 with Professor J. R. Choudhury, Vice Chancellor, BRACU as the chief guest. Dr. Dipen Bhattacharya, Associate Research Professor of Astrophysics (Institute of Geophysics and Planetary Physics, University of California, Riverside, USA) and now working as a visiting faculty at the MNS Department, BRAC University gave a seminar talk entitled "Aajker Bisshe Jotirbiggan Gabeshana" on January 27, 2007.