A City on Mars★★★★★
Kelly and Zach Weinersmith Accessible and intricately researched, with scattered humor to keep the reader’s interest. Getting to space is the easy part. Staying there is going to be a lot more complicated.
Soonish★★★★★
Kelly and Zach Weinersmith Fascinating, accessible, funny, and still relevant overview of cutting-edge tech, even though it took me 7 years to get around to reading it.
Under Alien Skies★★★★★
Philip Plait A fun look at what it would be like to visit other planets or star systems, weaving together sci-fi scenarios, the science behind them, and the history of how those discoveries were made.