I have to agree with Zembar. It's a very, very beautiful model of the moon, but it's still just the moon. The only thing that set the Supermoon apart was that it was slightly closer to the earth than usual—-a quality impossible to make intrinsic to a model (just hold it closer). I understand that the model is… » 11/21/14 3:16am 11/21/14 3:16am

I just completed a cover and interior spread for Astronomy depicting the upcoming flyby of Pluto, and a cover and two spreads for Scientific American about superhabitable planets. My latest book, The Art of Space, came out last week and I'm gearing up for the next book project: a popular history of spaceships. It will… » 11/04/14 8:41am 11/04/14 8:41am

Good article, but I should point out that de Rozier's balloon didn't explode. In fact, it couldn't (that sort of thing had to wait for the development of the hydrogen balloon). Neither, by the way, was it an airship. Airships are by definition steerable. Jules Verne made the distinction in his aviation novel, Robur… » 10/14/14 9:29am 10/14/14 9:29am

I looked in vain for a credit to Jack Williamson's classic short story, "Born of the Sun" (1934), in which a series of anomalies on the moon, including huge cracks splitting the surface, result in the revelation that the moon is in fact a gigantic egg. The egg hatches and a gigantic winged creature emerges. » 10/12/14 6:40am 10/12/14 6:40am