What is the maximum possible distance that can be drawn between mars and Neptune

The maximum possible distance that can be drawn between Mars and Neptune would be the distance between their furthest points in their respective orbits around the Sun.

The average distance from the Sun to Mars is about 227.9 million kilometers (141.6 million miles), while the average distance from the Sun to Neptune is about 4.5 billion kilometers (2.8 billion miles).

Therefore, the maximum possible distance that can be drawn between Mars and Neptune would be the difference between their furthest points from the Sun, which is approximately 4.5 billion kilometers (2.8 billion miles).