I suspect the sciences also aren't as "juicy" for want of a better word. Finance is a very human field and there is huge scope for interpersonal conflict and drama, which people love to read about.
If you think there isn't interpersonal conflict & drama, you're not listening to the arguments between the proponents of string theory, quantum gravity, and people like Roger Penrose who are somewhat skeptical of both.
More likely that because finance involves money, and huge amounts of it, and a lot of people are interested about things that involve huge amounts of money, especially if there's drama.
> I think the challenge is that the sciences are hard and developments there are fairly slow as compared with financial stuff which moves a bit more quickly.