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BY MAKING EXTREMELY DEEP  HIGH FIDELITY MEASUREMENTS OF THE ENTIRE PORTION OF THE SOUTHERN SKY THAT IS RELATIVELY FREE OF GALACTIC EMISSION  THE SPIDER DATA COMPLEMENT THOSE OF PLANCK (IN SENSITIVITY AND CONTROL OF SYSTEMATICS) PIPER (IN FREQUENCY COVERAGE) AND EBEX (IN SKY COVERAGE AND ANGULAR SCALE). THE DATA FROM SPIDER'S INAUGURAL FLIGHT IN 2015 HAS RESULTED IN HIGH SIGNAL-TO-NOISE MAPS OF THE SOUTHERN GALACTIC HEMISPHERE COVERING 10% OF THE FULL SKY AT EACH OF 94 AND 150 GHZ. THE PAYLOAD IS NOW BEING FABRICATED AND FITTED WITH A SUITE OF 285 GHZ CAMERAS TO EXTEND OUR FREQUENCY COVERAGE  IMPROVING OUR ABILITY TO DISENTANGLE THE GALACTIC AND COSMOLOGICAL SIGNALS. IF ITS SIGNATURE IS PRESENT IN THE CMB  SPIDER'S FREQUENCY COVERAGE AND FIDELITY TO A BROAD RANGE OF ANGULAR SCALES ENABLE THE EXPERIMENT TO TAKE A STEP BEYOND DETECTION  TOWARD THE CHARACTERIZATION OF THE GRAVITATIONAL WAVE INDUCED SIGNATURE IN THE CMB. ADDITIONALLY SPIDER SERVES AS A TRAINING GROUND FOR YOUNG SCIENTISTS  INCLUDING 16 GRADUATE STUDENTS (9 FEMALE  7 MALE).","funder_award_id":"NNX17AC55G","funder_id":"https://openalex.org/F4320306101","funder_display_name":"National Aeronautics and Space Administration"},{"id":"https://openalex.org/G8420574223","display_name":"PROPOSAL TO STUDY THE PROPERTIES AND INTERACTIONS OF ELEMENTARY PARTICLES","funder_award_id":"DESC0007859","funder_id":"https://openalex.org/F4320306084","funder_display_name":"U.S. Department of Energy"},{"id":"https://openalex.org/G989574591","display_name":null,"funder_award_id":"80NSSC21K1986","funder_id":"https://openalex.org/F4320333962","funder_display_name":"Science Mission Directorate"}],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"},{"id":"https://openalex.org/F4320306084","display_name":"U.S. Department of 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