우주공간 크기 1mm 이동경로 추적 가능 의미ᆞ US Military Satellite Explosion No Threat to European Space Missions - http://m.space.com/28904-satellite-explosion-no-threat-esa-says.html?cmpid=514648_20150324_42608856&adbid=580421353939025921&adbpl=tw&adbpr=15431856

20150325

satellite tracker etcᆞ
우주공간 크기 1mm 이동경로 추적 가능 의미ᆞ

US Military Satellite Explosion No Threat to European Space Missions - http://m.space.com/28904-satellite-explosion-no-threat-esa-says.html?cmpid=514648_20150324_42608856&adbid=580421353939025921&adbpl=tw&adbpr=15431856