CIERA - Northwestern University转发了
Did you catch last week's blood moon? Don't worry if not, graduate student Imran Sultan has you covered ?? The blood moon was visible during a total lunar eclipse, when Earth cast its shadow over the moon. Lucky for us, Sultan was ready to capture the phenomenon—filming the entire event, which lasted about four hours early Friday morning, using a refractor telescope and DSLR camera. CIERA - Northwestern University