O, B, A, F and so on… What do they all mean?
VIDEO: Watch a spacecraft’s view of the Sun as it does a barrel roll
On 6 July, engineers instructed NASA’s Solar Dynamics Observatory, or SDO, to roll 360 degrees
O, B, A, F and so on… What do they all mean?
On 6 July, engineers instructed NASA’s Solar Dynamics Observatory, or SDO, to roll 360 degrees