Competition , Rival....?
Opponent, adversary, antagonist, challenger...
you have to defeat one challenger for another to appear
By enemy fire? no, none. One was destroyed in a friendly fire incident by another Challenger II.
a challenger
the word best is on the top of the box of crackers in the picture
NASA named the region where its 'Opportunity' rover landed on Mars after the Challenger crew who died during shuttle lift-off in January 1986. The name of the area is now known as Challenger Memorial Station.
Michael Challenger goes by Challenger.
Do we have a challenger to take on my champion.The Challenger disaster was completely avoidable.
Non challenger
The next space shuttle mission after the Challenger disaster took place almost three years later with the launch of Discovery on September 29, 1988. The Challenger disaster occurred on January 28, 1986.
a srt challenger
Challenger.