MIT physicist on mystery of dark matter in Harvard talk – Harvard Gazette

Scientists know that dark matter exists because although we can’t see it, we can see the effects of what it does in the world, sort of like a ghost bumping around a haunted house. And we’re not sure what it is, but some think it may just be a WIMP.

Those are some of the insights that emerged from a Harvard Science Book Talk on Monday that featured an online conversation between Peter Fisher, the Thomas A. Frank Professor of Physics at MIT, who just wrote a book titled “What Is Dark Matter?,” and Melissa Franklin, Mallinckrodt Professor of Physics at Harvard.

Fisher opened the…