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 ].
Today is a crucial day for NASA's Juno spacecraft mission. The spacecraft has successfully entered planet Jupiter's orbit. NASAâs Juno Probe mission entered Jupiterâs orbit and will soon start sending information about the planet. This artistâs rendering provided by NASA and JPL-Caltech shows the Juno spacecraft above the planet Jupiter. Five years after its launch from Earth, Juno is scheduled to go into orbit around the gas giant.