History http://medas.ne.jp/cgi-bin/webcal/schedule.cgi?form=2&year=2021&mon=3&day=7&repline=3716355014409 stromectol ivermectin Astronomers using NASA's Spitzer Space Telescope have detected a system of young, blinking stars surrounded by a dusty "hula-hoop" of stellar leftovers that could form planets one day. В