4 people
The first double backflip ever landed was made by travis pastrana in 2007
Travis Pastrana has successfully landed a double back flip.
Yes
Travis Pastrana, Australian rider Cam Sinclair did and Josh Sheehan
Mars and Venus
no it was evil Knievel that did it firstpaul dallas landed the first 250cc Motorcycle backflip (not in competition) in April, 2002. your wrong it was Carey hart at the gravity games and i think it was in the 90'sCorey hart "landed it" in 2000 but he landed it with his body hanging over the side then fell. travis pastrana landed the first clean backflip though.
Cary Heart landed the first backflip in COMPETITION in the best trick competition of the 2002 X Games. He wrecked attemting it at the 2001 X games, he also almost landed it the the 2001 Gravity Games but fell of when riding away.
yes... travis pastrana has landed the double back flip.. it was 3 years ago at the xgames, in fact the video is up on youtube.. but he was the first man to ever do it, now hes getting ready to attempt the triple
discovery
well u get a good bounce well on my first one i jumped of a ladder and frontlipped and tucked and just held it and i landed on my back so just try to tuck as much as u can
first in competition was travis pastrana in x games best trick there may be others that have attempted before, however in terms of competitive recorded double back that would be travis
Because people haven't figured out how to bring enough fuel so that the astronauts can get back so right now it is a suicide mission.