Answer: Decreasing the distance of the space shuttle from Earth .
Explanation:
According to expression of gravitational force:

G = gravitational constant
= masses of two objects
r = Distance between the two objects.
F = Gravitational force
From the above expression we can say that gravitational force is inversely proportional to squared of the distance between the two masses.

So, in order to increase the gravitational force on space shuttle distance between the space space shuttle must be decreased.
Hence, the correct answer 'decreasing the distance of the space shuttle from Earth '.
Answer:
Regulus
Explanation:
Which is 77.63 light years away
Answer:
northern and southern sphere
Explanation:
Lose electrons because they have a negative charge.