I dreamed that I was leading a space agency, Kerbal Space Program style. I was in control of a solar array car thingy on mars which was going to be used as the main power source for a permanent colony. Suddenly, two vehicles landed nearby and I received a communication from them. They were aliens from a planet that was located roughly where the asteroid belt should've been. The planet looked like a blue gas giant, but it had a rocky core submerged under a massive ocean, with a few continent sized icebergs of the dark side and a few weird ice island formations shaped like a ring with a massively high ice mountain in the middle. They lived somewhere at the bottom of the ocean on the dark side, where the temperature was the absolute lowest temperature possible (0k), even though there was liquid water everywhere. These aliens were also significantly more advanced than us, having replaced their previous bodies for robotic ones, which required an extremely low temperature to survive and so, whenever they left their homeland they needed special suits that would keep them cold. They were extremely arrogant and seemed to dislike us. They also wanted to settle on mars, on the dark side where my solar array was set up (every planet in my dream seemed to be tidally locked, and also there seemed to be nothing wrong with setting solar panels on the dark side). They wanted the entire half of the planet for themselves and started firing lasers at me until I moved my vehicle on the bright side. I also remember hearing them laugh at the size of our mountains.
Later during the same night, I had another dream in which I was helping a old lady carry a heavy rug she had won in some sort of lottery at a general store. When I finally finished my job, she rewarded me by sending me back in time, in an era where there was no corruption and scientists were seen as heroes (It looked like it was vaguely based on the cold war era, with the scientists having a good reputation from the NASA). These scientists had been waiting for someone to come from the future to tell them if global warming would be solved by the human species without having to alter the timeline. I told them that corruption made any change impossible, and so they sent me far into the future to find technology that could help us solve the problem. I was immediately greeted by intelligent robots that were apparently waiting for me. They gave me the instructions needed to replicate pretty much everything that was invented in this timeline. One thing I noticed is that we were in some kind of abandoned city, which was filled with dust. Everything was also in sepia except the robots, me and their technology. After that I went back to the present to change the world with the help of this new technology. I don't remember anything else after that.