Exploring Mars: Unmanned Spacecraft and the Mars Exploration Rovers

The video discusses Mars exploration, starting with unmanned spacecraft observing Mars since the 1970s. It highlights the Mars Global Surveyor mission, which mapped the Martian surface and returned significant data. The video then covers the upcoming Mars Exploration Rovers, set to launch in 2003, aimed at studying regions affected by water. The Rovers will face challenges like rough terrain and communication delays. The mission duration is planned for 90 days, extendable to six months, depending on conditions.

What was a significant challenge faced by the Mars Global Surveyor during its mission?

• A faulty landing gear

• An unexpected dust storm

• A loose solar panel

• A malfunctioning communication system

What is the primary goal of the Mars Exploration Rovers?

• To test new propulsion technologies

• To establish a human base on Mars

• To search for signs of past water activity

• To collect samples for return to Earth

Why did NASA decide to send two rovers to Mars?

• To explore different planets

• To have a backup in case one fails

• To test different technologies

• To increase the speed of exploration

How long does it take for a radio message to reach the Mars Rovers from Earth?

• 10 minutes

• 20 minutes

• 5 minutes

• 30 minutes

What limits the operational duration of the Mars Rovers?

• Lack of fuel

• Mechanical wear and tear

• Martian winter reducing sunlight

• Communication breakdown