Space Travel And Discovery Flashcards

1
Q

How far have we only gone?

A

The Moon

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2
Q

Where do we hope to go soon?

A

Mars

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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.

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4
Q

List the four main problems associated with going to a planet beyond the Solar System.

A
  1. The flight would last many generations
  2. Spacecraft are too slow
  3. Spacecraft cannot carry enough food, fuel and oxygen
  4. Chance of failure would be great, with no chance of returning back to Earth.
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5
Q

How do we search for extraterrestrial life?

A

We wait for radio signals.

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6
Q

What does SETI stand for?

A

Search for extraterrestrial intelligence.

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