Centaurs, Soviets, and Seltzer Seas: Mariner 2’s Venusian Adventure (1962) Hydrogen is the most common kind of normal matter in the universe. Perhaps the universe is trying to tell us something, for the most common chemical element makes an excellent energetic rocket fuel. That does not mean, however, that it is easy to manage. Odorless and colorless hydrogen gas becomes liquid, and thus dense enough […] The post Centaurs, Soviets, and Seltzer Seas: Mariner 2’s Venusian Adventure (1962) appeared first on WIRED.
Posted on: Sat, 20 Dec 2014 21:41:53 +0000