RT @csa_asc: RT “@Astro_DavidS: #WCIS14 Clearwater impact crater, near Hudson Bay, seen from ISS this summer.
http://t.co/p9xEFLwnHJ” @DaveAtCOGS
RT @csa_asc: RT “@Astro_DavidS: #WCIS14 Clearwater impact crater, near Hudson Bay, seen from ISS this summer.
http://t.co/p9xEFLwnHJ” @DaveAtCOGS