Carl Sagan dreamt of navigating the cosmos on sails pushed by the solar wind—the steady stream of charged particles emanating from the Sun. These solar sails may one day carry humans to other planets and maybe even other star systems. The Planetary Society, led by CEO Bill Nye “The Science Guy”, aims to make this dream a reality.
There are secrets space can't keep. When the National Reconnaissance Office launched an object into space earlier this month, we knew only rough details: the size of the rocket used (large), the nature of the agency launching it (reconnaissance), and the levels of secrecy around the payload (many). Now, thanks to the work of amateur astronomers, we have information that's impossible to conceal: where, exactly, the object is in orbit--plus, what it might be.