Six Science Fiction Haiku

waiting by the craft
for glimpse of alien
only a robot

science fiction fans
wishing to get off this rock
then gravity dies

aliens arrive
with no spaceship or journey
born in the earth core

early warning
was not all that helpful
earth killer comet

Martians seen future
move all to the new planet
unoccupied Earth

Martian colony
residents are complaining
price of air went up