Back in the days of Apollo, sending humans to the moon was the only viable way to get the scientific data we wanted. But now, with our computer and robotics technology, there’s very little an astronaut can do on Mars that a well-designed rover can’t

Back in the days of Apollo, sending humans to the moon was the only viable way to get the scientific data we wanted. But now, with our computer and robotics technology, there’s very little an astronaut can do on Mars that a well-designed rover can’t (Andy Weir)