SpaceX launched a mystery satellite to geostationary transfer orbit (GTO) from Florida's Space Coast early Sunday morning ...

Thanks to atomic clocks (and all the worldly forces that influence them), scientists know that Earth's rotation has begun to ...

Orbital mechanics can be a bit counter-intuitive. We have to slow down an orbiting space craft to convert kinetic energy for gravitational energy. The orbital altitude is raised at its highest point ...

Terran Orbit has demonstrated a record-breaking 200-gigabit orbital data link that finally allows high-bandwidth data transfer from space to Earth. It'll replace antique, low-bandwidth X-band ...

Using the UVES spectrograph on the VLT they measured their orbital speed, ... The astronomers observed the orbital path of the two stars in 2M1510 being pushed and pulled in unusual ways, ...

Varying revolution times are due to each planet's distance from the sun and its orbital speed. To stream 13News Now on your phone, you need the 13News Now app. Download the 13News Now app.