Again, this is just for fun. What would we look like to aliens, and would they be able to tell which humans look most attractive to us? So, to get us started, which of these faces do you find…

This is just for fun. At first sight this seems impossible - the smallest stars are heavier than the heaviest planets, and how can something heavier orbit something that is lighter? But what if you…

New research predicts that Earth has more than 1,500 undiscovered minerals and that the exact mineral diversity of our planet is unique and could not be duplicated anywhere in the cosmos. Minerals…

Perhaps you saw the news recently about astronauts in the International Space Station eating their first home grown lettuce? It's just a beginning, but in the future, could they grow all their own…

One day, it might be possible to detect the spread of life among the stars through panspermia--a hypothetical process of life distributed throughout the Milky Way by asteroids, comets, and even…

Perhaps you saw the news recently about astronauts in the International Space Station eating their first home grown lettuce? It's just a beginning, but in the future, could they grow all their own…

Science fiction movies about aliens threatening the Earth routinely ascribe them the motive of coming here to steal our resources, most often our water. This is ill thought-out, as water is actually…

Is the ISS the most expensive single human artifact ever, after adjusting for inflation? Well, to start with, it's a whole lot more expensive than a medieval cathedral anyway. First we need an…

Well, a whole lot more expensive than a cathedral anyway. There's an estimate here that the cost of rebuilding Chatres between 1194 and 1223 amounted to around fifty million dollars: Cathedrals…

A team of researchers has discovered a Jupiter-like planet within a young system that could provide a new understanding of how planets formed around our sun. The new planet, called 51 Eridani b, is…