b"2018-2019 YEAR BOOKCarnegie FriendsLifetime Giving Societies Philanthropy has been the heart of Carnegie Science since45Andrew Carnegie made his first gift of $10 million, which established the institution in 1902. Many generous individuals and foundations have since demonstrated a commitment to bold scientific pursuits that create new frontiers, expand human understanding, and launch the next generation of discoveries. We celebrate your investment in Carnegie Science, which helps our investigators ability to explore beyond the boundaries of space, Earth, and life sciences. Youve empowered Carnegie scientists with a rare ability to take risks and chart newoften, previously unimaginedresearch paths. Together, we are exploring new vistas of knowledge, and we are proud and thankful that you are our partner in this scientific enterprise. Your support has helped advance Carnegies scientific research in areas as diverse as exploring the microbial ecosystems and cholesterol processing in the gut, to the effects of climate change on Earths ecosystems, to how the large-scale structure of the universe is evolving and changing, plus much more. The following listings include those who have generously supported Carnegie Science including individuals and those who have given from private foundations and donor-advised funds.This artists impression shows a cutaway of the parts of the universe to explore with the Sloan Digital Sky Survey-V (SDSS-V), led by Carnegie astronomer Juna Kollmeier. Millions of stars detected can allow the creation of a map of the entire Milky Way. Farther out, the survey can view the largest nearby galaxies. Even farther out, the survey can measure quasarssuperbright objects powered by matter falling into giant black holes.Image courtesy Carnegie Institution for Science/Robin Dienel/SDSSThe cellular structure of the intestine responds to specific nutrients in the diet. Here, a fruit fly gut is showneach blue circle is the nucleus of an intestinal cellwhich has doubled its normal number of hormone-producing cells (pink dots) following a diet high in cholesterol. Carnegie's Rebecca Obniski, Matthew Sieber, and Allan Spradling found changes in several tissues, showing they have long-lasting effects on metabolism and cancer susceptibility.Image courtesy Rebecca Obniski, Matthew Sieber, and Allan Spradling, Carnegie Institution for Science"