Is there a theory why so many archaeology stories show up on the front page of HN? I'm not complaining (I like reading about the topic), but most of the other

Is there a theory why so many archaeology stories show up on the front page of HN? I'm not complaining (I like reading about the topic), but most of the other frequent topics are stuff that are of pretty obvious interest to the tech-crowd. Kinda puzzling that the one exception (that I've noticed, anyways) is archaeology.