Spacecraft launch into Earth orbit is a complex multi-stage process. The process of achieving Earth orbit is highlighted using NASA's Wide-field Infrared Survey Explorer (WISE) satellite as an example ...

The planets of our solar system move in ellipses. We've known this, so we are told, ever since Johannes Kepler devised his laws of planetary motion in the early 1600s. While it's true that orbits are ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. When Johannes Kepler made the intuitive leap in the early 1600s to realize that planetary orbits ...

Summer is only a couple of days old, and already we’re baking. As I write these words, the temperature outside of my desert home is hovering at 118 degrees F, and there’s no sign of it letting up ...

Cometary orbits exhibit a wide range of shapes and eccentricities, not all being highly elliptical. Comets originating from the Oort Cloud possess highly eccentric elliptical orbits, subject to ...

The U.S. military's X-37B space plane is about to begin a series of novel maneuvers, according to a rare official update on ...