The Earth to Mars flight time is closer to 6 months, something humans have done before on the ISS. The Constellation program planned for astronauts to spend 500 days on Mars to conduct scientific experimentation.
And the fuel for a return trip would be created locally by In Situ Resources Utilisation which is a bit of a NASA wet dream but not completely unrealistic. Considering all you need is H2 and O2 that can be hydrolyzed from water ice on the Mars surface.
But yeah won’t happen anytime soon
I’m going to bitch about the winter beating back the German.
The German had to stop their offensive in part because of winter, as the logistic network was too long and overcapacity to effectively bring winter gear up to the front.
But that’s only part of it, the issue. The biggest issue is, the German army was just out of steam by December 1941. They had been fighting nearly non stop since March, 1st in Yugoslavia and Greece and then in the USSR with very little time to recover. The fighting in the USSR had been very costly in men, and the drive itself had left the tanks and trucks running ragged. The Germans needed to use the winter to bring up fresh troops, equipment and munition for large scale offensive in spring 1942.
Also there is probably something to be say about diminishing the achievement of Soviet Generals like Konev and Zhukov but I am too sleepy to finish my comment.