Please study the Virgin Galactic network map [below] which clearly displays a straight line route between Procyon and Planet Earth.

All spaceships on the straight line route [between Procyon and Planet Earth] **may** stop at any of the intervening space stations so that passengers may board or leave the spaceship.

The distance between Procyon and Planet Earth is approximately 11.46 light years.

A recent survey produced a colour coded graphic indicating how many passengers arrived at Planet Earth on the last Virgin Galactic spaceship from Procyon.

A black rectangle in the graphic represents an empty seat on the spaceship when it arrived at Planet Earth. The coloured rectangles represent passengers who arrived at Planet Earth on the spaceship.

Question 2a)

Can you calculate how many passengers boarded the spaceship at Procyon?

Question 2b)

Can you calculate how many passengers left the spaceship before it arrived at Planet Earth?

Question 2c)

Can you calculate how many passengers boarded the spaceship after it left Procyon?

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For a start my first question would be “Which direction is the travel flowing, Top to bottom, bottom to top, left to right or right to left”.

ie I do not have enough data

ps but of course I am not an Astronomer.

The flow in this series of questions is always downwards… i.e towards Earth.

But the concept of “insufficient data” is refreshing to read – especially in this context.