Space Travel And Discovery Flashcards
1
Q
How far have we only gone?
A
The Moon
2
Q
Where do we hope to go soon?
A
Mars
3
Q
What is the difficulty of reaching a planet outside our Solar System?
A
The fastest spacecraft can travel at 70,000 metres per second.
At this rate it would take 18,000 years to reach the nearest planet outside the Solar System.
4
Q
List the four main problems associated with going to a planet beyond the Solar System.
A
- The flight would last many generations
- Spacecraft are too slow
- Spacecraft cannot carry enough food, fuel and oxygen
- Chance of failure would be great, with no chance of returning back to Earth.
5
Q
How do we search for extraterrestrial life?
A
We wait for radio signals.
6
Q
What does SETI stand for?
A
Search for extraterrestrial intelligence.
