Summary
MID-SCALE RI-2: ADVANCED MILLIMETER SURVEY INSTRUMENTATION IN CHILE -LARGE SCALE MILLIMETER-WAVE SURVEYS OF THE SKY AT HIGH RESOLUTION, DESIGNED TO EXPLORE THE ORIGIN AND EVOLUTION OF THE UNIVERSE, CAN ADDRESS A WIDE RANGE OF PRESSING SCIENCE QUESTIONS. THE NEXT GENERATION OF COSMIC MICROWAVE BACKGROUND (CMB) INSTRUMENTS WILL REVEAL MUCH ABOUT THE ORIGIN AND EVOLUTION OF THE UNIVERSE, ABOUT THE FUNDAMENTAL PHYSICS DRIVING ITS BIRTH AND GROWTH, AND ABOUT ITS DYNAMIC CONTENTS AS THEY INTERACT AND CHANGE. ACHIEVING THESE GOALS REQUIRES A SIGNIFICANT IMPROVEMENT BOTH IN INSTRUMENTAL CAPABILITIES AND IN DATA PIPELINES. BUILDING ON SIGNIFICANT INVESTMENT BY THE SIMONS FOUNDATION (SF) IN THE SIMONS OBSERVATORY (SO), THIS AWARD PROVIDES THREE ADVANCED SO (ASO) DELIVERABLES, WHICH WILL INCREASE THE SCIENTIFIC REACH, INCREASE ACCESS TO THE WIDER COMMUNITY NOT EXPERT IN THE INSTRUMENTATION, AND DECREASE THE ENVIRONMENTAL IMPACT OF THE FACILITY AND IMPROVE RELATIONS WITH THE HOST COUNTRY OF CHILE.