According to a pair of mad scientists, it’s the only efficient way to colonize the Red Planet. Flying back and forth from Earth is too time consuming (about 6 months each way) and with all the return fuel that’s needed, costly. So, they’re suggesting a space exploration program that would send old people astronauts on one-way missions, since they don’t have too long to live anyway. The downside: they’ll die of radiation alone on an alien planet. The upside: it could reduce costs by 80%.