The drug in question is saquinavir, one of a class known as protease inhibitors, which revolutionised the treatment of AIDS when they were introduced in 1996.

• 9年前，一群在宇宙中寻找外星生命迹象的狂热分子灵机一动，将任务分配给成千上万的拥有个人电脑的人，传输给他们大量的无线电天文望远镜的数据，以及寻找智能信号的软件。