The Aris I-X rocket is a test rocket for the Ares I (right) which will be the actual rocket that will launch space missions. They are shown in this artist's concept.
The Aris I is slated to replace the space shuttle which is being retired in 2010. A larger rocket, the Aris V is slated to be the main force behind sending humans back to the moon and beyond.
NASA's current rocket program is under attack. A commission appointed by President Obama says the big moon rocket won't be ready until the late 2020's and suggested that future efforts should be led by private contractors with government support.
Image credit: NASA
Join Discussion