NASA’s Competition Model 2.0 aims to shorten the contest for science missions by asking for less detail upfront. A faster selection does not by itself mean a spacecraft launches sooner.
A free-return path uses Earth–Moon gravity to bring a spacecraft back toward Earth. Here is why that does not mean a mission needs no engines or course corrections.
Photo: Alfred T. Palmer / U.S. Office of War Information · Public domain · Source · Display crop; details in article.
Why AI infrastructure needs electricity, financing and useful applications. A sourced guide to the IEA’s projections and the IMF’s October 2026 outlook.