Laser Communication from Space

What is the main advantage of using laser beams over traditional radio waves for space communication?

• Laser beams require less energy to transmit.

• Laser beams can transmit data at much higher speeds.

• Laser beams are cheaper to produce.

• Laser beams are less affected by weather conditions.

What was the primary goal of the OPALS experiment?

• To test new spacecraft materials.

• To explore high-bandwidth space communications using light.

• To improve the durability of space station equipment.

• To develop new satellite imaging techniques.

How long did it take OPALS to transmit a single copy of the 'Hello World' video message?

• 3.5 seconds

• 10 minutes

• 148 seconds

• 50 megabits per second

What was the maximum data rate achieved by OPALS during the transmission?

• 10 megabits per second

• 1 gigabit per second

• 50 megabits per second

• 100 megabits per second

What challenge does the speed of the space station present for laser communication?

• It limits the amount of data that can be sent.

• It increases the cost of communication.

• It makes precise targeting of ground telescopes difficult.

• It causes signal interference.