NASA

Nasa is an organization of united States which is established in1958 exactly after "sporting"of Russia was sent to space. nasa has 12 branch and the central one is in DC. right now the manager is "Charles Bolden". Two important  mission of nasa were Curiosity  and New horizon. Curiosity was sent to Mars in2012. this mission was a real success and New horizon was sent to Ploto in 2006. in 2007 it passed Jupiter and after that it took 8.5 years to get there. so it took 9.5 years to reach Ploto and in 2015it sent the first photos of Ploto. Before that even with strong telescopes it was a small bright spot in the dark space. the reason of sending New horizon was this: why "sharon"the moon of Ploto is 2.5 times bigger than it's planet?? the first time in 1930 it was known as a planet. but after this mission it was not a planet any more. by the number of 2017 the budget of nasa is over 19.5 billion dollars. in 2013 nasa had 18000 workers and staff.