There are a number of really interesting lectures this week, including three focused on food (tomatoes, tortillas and even an Indian buffet!), as well as a good variety of visual and performing arts lectures, book talks, and more.

The Air and Space Museum hosts a Milky Way discussion with Dr. Sandy Faber on Thursday evening. Image courtesy of NASA. DCist’s guide to lectures and discussions in the D.C. area Monday: >> Graphic designers: we hope you got tickets last week for tonight’s 7 p.m. Corcoran lecture with type designer Matthew Carter, because now it’s sold out. >> If not, head to Sixth and I for an author event with novelist Sara Houghteling…