Elon Musk says SpaceX is working on reusable rockets  Mar 10,
2013  The CEO of both Tesla and SpaceX, Elon Musk, took the
stage yesterday at SXSW to discuss several things, including a
couple of new projects SpaceX is working on. SpaceX is currently
working on building rockets that are reusable. The rockets are
what Musk says is one of the roadblocks that is holding back
humanity from the future of space travel. The cost of making the
one-time use rockets is what's stopping many businesses from
joining the industry.  Musk says that fuel and oxygen are hardly
the biggest costs of space travel. They only amount to 0.9% of
the total cost of the rocket. If SpaceX is able to create a
reusable rocket, they would be able to provide a "massive
hundred-fold derease in the cost of space flight." Musk says
that SpaceX's goal has been to expand humanity beyond Earth and
turn it into a "multi-planetary species." He continues to say
that all other forms of transportation that humans use are
reusable, so why not rockets?  T