It's not really comparable to the space shuttle. It's about 30 feet long (compared to the shuttle's 180 feet) and launches as a payload of a regular rocket.
It has some similarities in its heat shield, the wings and the runway landing, but as a tiny robotic vehicle that doesn't need fast turnaround because it's in space for many months at a time many of the problems of the space shuttle don't apply.
It has some similarities in its heat shield, the wings and the runway landing, but as a tiny robotic vehicle that doesn't need fast turnaround because it's in space for many months at a time many of the problems of the space shuttle don't apply.