For the past fifty years, we’ve been sending spacecraft tour
next-door neighbor, Mars. Starting with
Mariner 4 in 1965, which did the first flyby.
The Soviets achieved the first soft landing with the Mars 3 probe in
1971. Long before those milestones, sci-fi
authors have looked to the Red Planet with their own speculative fiction such
as Mars being inhabited by aliens (Percival Lowell’s 1895 Mars) and Earthlings on Mars (Ray Bradbury’s 1950 The Martian Chronicles).
Now such fiction could become reality in the next twenty
years. Although the minimum distance
between Earth and Mars is roughly 35 million miles, NASA believes the Red
Planet is within our grasp. Their
scientists have established three steps for our trip to Mars.
The first, Earth Reliant, is already in place with the
International Space Station (ISS).
Research is focused on human health and behaving in space as well as
extra-vehicular activities (EVA). Since
explorers in deep space and Mars won’t have access to Earth’s resources
habitations have to be self-sufficient to help crews remain healthy and safe.
In Proving Ground, second step, NASA will conduct operations
in deep space beyond Low Earth Orbit (LEO), with missions that will last up to
a year, but can return to Earth in a matter of days. Objectives include transportation of crews
and large cargo, working in space and continuing studies on staying healthy.
One of the goals is the In-Situ Resource Utilization (ISRU). The Mars 2020 Rover set for launch
in..well…2020 will carry an ISRU payload to demonstrate how oxygen can be
generated from the Martian atmosphere to
product rocket propellant. More than
half of a 35mt Mars Ascension Vehicle (MAV) is the propellant, so being able to
manufacture it on the Martian surface is an enormous advantage. More advanced ISRU technology will enable
humans to use local resources such as ice crystals or hydrated minerals to
produce water.
The third and final stage is becoming Earth
Independent. NASA is working to come up
with new technologies to produce water, air, fuel and materials for
building. The European Space Agency
(ESA) is also getting into the action, with support from NASA, with their
ExoMars orbiter and lander, which will search for the chemical origins of life. Currently, the goal for putting boots on the
ground on Mars is sometime in the 2030’s.
So simply put, the ISS studying EVA for NASA to put humans
into LEO and beyond, with the help of ESA to establish ISRU by 2030.
Get it? Got it? Good.
www.nasa.gov
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