An international team of astronomers has discovered a planet slightly larger than Jupiter that orbits a star 500 light years from Earth. A super-duper telescope was not even required; they found the planet using several small telescopes much like those used by amateur astronomers. The new planet is named TrES-2 because it is the second …
China’s Wall Less Great In View from Space
It has become a space-based myth. The Great Wall of China, frequently billed as the only man-made object visible from space, generally isn’t, at least to the unaided eye in low Earth orbit. It certainly isn’t visible from the Moon. You can, though, see a lot of other results of human activity. The visible wall …