Question

the galileo spacecraft was launched. 1993 galileo discovered an asteroid moon. 1600 1989 1997 1610 astronomer galileo found the moons of jupiter. 1995 galileo arrived at jupiter. 1991 galileo flew by an asteroid. what amount of time does each black line on the timeline represent? two years why is there a space between 1600 and 1989? it shows a gap in time. what does the timeline say about the discovery of the asteroid moon? it happened before galileo arrived on jupiter. it took two years. it happened before galileo was launched.

Explanation:

1. The time - interval from 1989 to 1997 is divided into 4 equal parts by black lines. The time - difference is \(1997 - 1989=8\) years, and \(8\div4 = 2\) years per part.
2. The space between 1600 and 1989 indicates a gap in the events being shown on the timeline.
3. Galileo arrived at Jupiter in 1995 and discovered the asteroid moon in 1993, so the discovery of the asteroid moon happened before Galileo arrived at Jupiter.

Answer:

What amount of time does each black line on the timeline represent? two years
Why is there a space between 1600 and 1989? It shows a gap in time
What does the timeline say about the discovery of the asteroid moon? It happened before Galileo arrived on Jupiter.