At a 3 percent growth rate, its doubling time â or the number of years to double in size â is 23 years. (The doubling time for a population can be roughly determined by dividing the current growth rate into the number 69.. Therefore, 69/3=23 years.
But the attempt was scrubbed about an hour before launch due to the helium leak. Todays launch has been scrubbed due to a helium leak on Falcon 9's first stage, SpaceX officials announced in an update today. A fix will be implemented by the next launch opportunity on Friday April 18, though weather on that date isn't ideal. [ See photos of SpaceX's 3rd Dragon mission to the space station ].
New Horizons. New Horizons is an interplanetary space probe that was launched as a part of NASA's New Frontiers program. Engineered by the Johns Hopkins University Applied Physics Laboratory and the Southwest Research Institute, with a team led by S. Alan Stern, the spacecraft was launched in 2006 with the primary mission to perform a flyby study of the Pluto system in 2015, and a secondary mission to fly by and study one or more other Kuiper belt objects in the decade to follow. It is the fifth artificial ob