1 00:00:00,000 --> 00:00:03,210 NASA's solar dynamics observatory, or SDO, has a constant eye on the sun 2 00:00:03,230 --> 00:00:05,910 But sometimes it sees other bodies too. 3 00:00:05,930 --> 00:00:10,050 On September 1, 2016, Earth briefly blocked the spacecraft's view. 4 00:00:10,070 --> 00:00:13,480 5 00:00:13,500 --> 00:00:16,590 During this time, the moon was also crossing the face of the sun, 6 00:00:16,610 --> 00:00:19,120 which allowed SDO to capture a double eclipse. 7 00:00:19,140 --> 00:00:34,049