NASA

The venerable Voyager spacecrafts are now nearly 50 years old, and having headed out beyond the orbit of Pluto and into interstellar space, the pair are the most distant man-made objects in the universe. But despite their incredible…

If the tire on your car fails, it’s either a case of changing it yourself or getting someone to do it for you. For rovers on Mars, neither option is available. The good news is that the wheels on NASA’s robot vehicles are robust…