The Sagittarius Window Eclipsing Extrasolar Planet Search , or SWEEPS , was a 2006 astronomical survey project using the Hubble Space Telescope 's Advanced Camera for Surveys - Wide Field Channel to monitor 180,000 stars for seven days to detect extrasolar planets via the transit method .
The Sagittarius Window Eclipsing Extrasolar Planet Search , or SWEEPS , was an astronomical survey .