Astronomy Picture of the Day . Lensing through Baade's Window . ... 1.02.1996 . ... Now called " Baade's Window ", this sky region contains millions of stars and is used for many studies of the distant Milky Way . One clever use, devised by Bohdan Paczynski, is to monitor millions of stars in our Galactic Bulge - many through Baade's window - for sudden brightening due to gravitational lensing . ... Publications with keywords: Baade's Window . ... Stars and Dust through Baade s Window ...