A recently discovered interstellar comet, 3I/ATLAS, is causing a stir in the scientific community. Most comets detected so far are local to our solar system, but 3I/ATLAS is a rare interstellar ...
SALT LAKE CITY — The first thing to know about potential alien invaders is that the U.S. Government no longer classifies them as unidentified flying objects. That sounds too scary. They are classified ...
U.K. start-up Pulsar Fusion has unveiled plans to build a fleet of reusable nuclear fusion-powered rockets, known as Sunbirds, that could cut journey times across the solar system in half. But not ...