“We have named it ‘Alien Artifacts,’” Swartz writes, “but actually we are using this term not so much to say that we believe that we have recovered things from ‘extraterrestrial spaceships,’ but because what we are discussing in this book is ‘alien’ as they don’t appear to ha...
Volcanic flows that cooled on the asteroid’s surface would have recorded evidence of that magnetic field. “We might actually be able to see these things,” says Elkins-Tanton, of Arizona State University in Tempe. “I think it’s really cool.” From METAL ASTEROIDS MAY HAVE ONCE HAD ...