1 Mars Orbiter Mission Mangalyaan
cheapest successful mission to mars
In september 2014, the indian space research organisation (ISRO) became the only space agency in the world to reach the orbit of our neighbouring planet, mars, on its frist attempt.
The real kicker was that it did it on a budget so small -$74million -in a time frame so brief (18 months to design and deploy)that it established ISRO as the people to contact if you want to send something somewhere off the planet quickly, effectively and for as little as possible.
Only three other space agencies had made it into the mars orbot when mangalyaan hit its intended target- The US National Aeronautices and space administration (NASA), and the Russian and European space agencies.