The main danger of a flight to Mars

[Ignat]

On average, using modern technology, a flight to Mars takes from 6 to 9 months. Astronauts will be exposed to significant amounts of cosmic radiation, which can increase their risk of developing cancer and other radiation-related diseases. Complete protection from cosmic radiation is unattainable using modern technologies.A typical mission to Mars can take anywhere from 1.5 to 3 years, including a round trip, as well as a stay on the surface of Mars.Estimates show that astronauts can receive a radiation dose of 0.5 to 1 Sievert per year in interplanetary space. For a 3-year mission, this can range from 1.5 to 3 Sievert .NASA sets radiation exposure limits for astronauts at 0.6 Sv per career for women and 1 Sv per career for men. Radiation doses exceeding these limits can significantly increase the risk of cancer and other radiation-related diseases.Thus, astronauts flying to Mars and back may receive significant radiation doses exceeding the established limits.

 

[promytius]

Wouldn't that be the least of their problems? They can't breathe the atmosphere, the temperature fluctuations, food and water supplies, alien bacteria/viruses, storms, meteorites, spare parts... it's a death march.

 

[Classical Motion]

A bridge too far.

 

[Atlan0001]

The Space Frontier and all its dangers can be dealt with and conquered by life as have all the frontiers of billions of years of history. All it takes is getting into the frontiers first and foremost to meet the environ. It never has been "safe" ("safety") first and foremost and never will be. As with any life the soft part is inside and the hard bark, roughly speaking, will be to outside. Only an absolutely closed world without any external frontier outside being exhausted to, a world Utopia (read: Dystopia), will have the hard parts eating the softer alive.

The problem with Mars is that it is a sinkhole singularity (far too little, far too late) unlike the superposition high frontier of the Lagrange points, planetary orbits, the asteroid belt, etc., and their superposition high frontier orbital potentials for vastness, for energies, for artificial gravities, and for custom manipulations, protections, facilitations, stations, colonization, and evolutionary technical and industrial revolutions. The sinkhole of Mars can be and should be taken "in passing!" Not first and foremost!

 

[promytius]

Strategically Mars is useless; tactically Mars is unsupportable; realistically Mars is not, nor ever will be a Total Recall. "We won't be back."

#1 AIR:
The Martian atmosphere is primarily composed of carbon dioxide (CO2) at around 95%, with smaller amounts of nitrogen (N2) at 2.7% and argon (Ar) at 1.6%. Trace amounts of oxygen (O2), carbon monoxide (CO), and water vapor also exist.

 

[Ignat]

In my opinion, it is necessary to settle the moon first, and only then to make trips to Mars. In this case, flights to Mars will be both cheaper and safer. So far, Mars can be explored with the help of robots.