If we’re going to colonize Mars someday, we’ll need to build durable structures to shelter us from the elements. Materials scientists at Northwestern University in Evanston, Ill., have developed a concrete material using only what’s available on the red planet and without using water.
Read MoreIf you think building a house on Earth is expensive, try building a space station on the moon. That’s what NASA hopes to be doing in 2020, as part of…
Read More