· 12th SESAME Users Meeting, 26-27 November 2014, Days Inn Amman Hotel , Amman - Jordan. · Third Middle-East and Africa IAU Regional Meeting (MEARIM III) , 1- 6 September 2014 , Crown Plaza Hotel , Beirut, -Lebanon . · Building International Networks for Enhancement of Research in Jordan; 3-5 April 2014, Princess Sumaya University for Technology (PSUT), Amman- Jordan. · 6 th Islamic Astronomy, 18 -21, March 2014, the World Islamic Science & Education University, Amman-Jordan. · 2 nd International Conference on Materials in Jordan; 9-11 April 2011, Princess Sumaya University for Technology (PSUT), Amman- Jordan. · 5th Islamic Astronomy, 22 -24, March 2011, the World Islamic Science & Education University, Amman-Jordan. · 4th Arab Confluence of Astronomy Amateurs and Space Science, 1- 4 August 2010, Kaferjanah - Halab / Syria . · 2 nd Lebanese Summer School on Astronomy, Spectroscopy in Astrophysics, 23-30 July 2010, Notre Dame UniversityLouaize / Lebanon. · Workshop on Materials in Jordan, 10-11 April 2010, Princess Sumaya University for Technology (PSUT), Amman, Jordan. · The International Conference on Materials in Jordan; 4-6 March 2009, Princess Sumaya University for Technology (PSUT), Amman-Jordan.