Complex sentence: NASA has hopes that it will be able to launch a manned interplanetary mission (to Mars) by some time after 2015 and the European Space Agency has the long-term vision of sending a human mission to Mars by 2030, the Aurora Programme.
Split into simpler sentences: NASA has hopes that it will be able to launch a manned interplanetary mission to Mars by some time after 2015. The European Space Agency has the long-term vision of sending a human mission to Mars by 2030 under the Aurora Programme.