O is for Optical Communications.
P is for Passive Sensor.
Q is for Quantum Entanglement.
R is for Return Link.
S is for Solar System.
T is for Tracking and Data Relay Satellite (TDRS).
U is for Universe.
V is for Velocity.
On Oct. 19, 2017, the Moon photobombed NASA’s Solar Dynamics Observatory, or SDO, when it crossed the spacecraft’s view of…
Agricultural fires in the Punjab state of India form a large cluster in this satellite image taken by Suomi NPP.
