Because getting there is hard. Like, really hard. To get to Mars requires an 8-month journey, and a launch vehicle capable of a [math]\Delta V[/math] of about 17 km/s. read more
Because getting there is hard.. Like, really hard. To get to Mars requires an 8-month journey, and a launch vehicle capable of a [math]\Delta V[/math] of about 17 km/s.. Just buying a rocket big enough to lift it all up costs you around $500 million! read more