The faraway exoplanet could help provide answers as to why there are hardly any planets with twice the diameter of Earth.

Robert H. Goddard is often referred to as the "father of modern rocketry" for his pioneering research in liquid propulsion. On that fateful day in 1926, Goddard launched a small rocket that flew for ...

Four astronauts from NASA, JAXA, and Roscosmos are teaming up for an ambitious mission aboard the International Space Station ...