Answer 1:
According to the American Meteor Society,
meteors can travel 11  72 km/sec (25,000 
160,000 mph). Mars is about 225,300,000 km
away. This is equivalent to about 12.5 light
minutes away. This means that it takes 12.5
minutes for light that is emitted on Earth to be
seen on Mars or vice versa.
Rockets travel much slower than the speed of
light, though. When the orbits of Earth and Mars
are aligned such that the distance between the two
planets is the smallest, it still takes 68 months
for spacecraft to travel this impressive distance.
It we could travel as fast as the fastest meteors,
we would make the trip in a little more than a
month (225,300,000 km)/(72 km/sec) equals about
3,130,000 seconds, which is about 1.2 months!
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