Gilles Leclerc has been appointed acting president of the Canadian Space Agency (CSA), following the departure of Dr Steve MacLean (R$, January 21/13). Leclerc is DG space exploration with the CSA and will serve as president until a permanent replacement is selected – a process that is expected to take several months. Taking over Leclerc's duties in the interim is Jean-Claude Piedboeuf, director of space exploration development….