Flashcard on Why We SHould Save Earth Before Colonizing Mars

Front

Why do some groups believe we 'must get off this planet for good'?

Back

Because a rock struck Earth and destroyed life millions of years ago.

Front

What is a key claim made by the author regarding Earth and Mars?

Back

Earth already has the things we would have to create to survive on other planets.

Front

How many planets discovered during space exploration resemble Earth?

Back

Very few of them.

Front

What does the author believe about our species and civilization-ending impactors?

Back

Our species could live for millions of years without a civilization-ending impactor, so we do not have to be in such a rush to leave.

Front

What is the role of NASA’s Jet Propulsion Laboratory?

Back

Tracks Near-Earth Objects.

Front

What is terraforming?

Back

The process of modifying a planet's environment to make it habitable for Earth-like life.

Front

Why is preserving Earth's flora and fauna important according to the author?

Back

It will help us when terraforming other planets.

Front

What are Near-Earth Objects?

Back

Asteroids and comets that come within 1.3 astronomical units of Earth.

Front

What is the significance of the statement 'Earth is where we first lived'?

Back

It emphasizes our responsibility to protect our home planet.

Front

What challenges are associated with colonizing Mars?

Back

High costs, time-consuming processes, and the need for terraforming.