We typically think of the Oort cloud as scattered ice balls floating far from the sun, yet still tied to it gravitationally.

Scientists are studying Saturn's moon Titan to assess its tidal dissipation rate, the energy lost as it orbits the ringed planet with its massive gravitational force. Understanding tidal dissipation ...

Free body diagrams do not need to be drawn to scale but it can sometimes be useful if they are. It is important to label each arrow to show the magnitude of the force it represents. The type of ...

Conquer Space! A space themed grand strategy set in the present to near future, with emphasis on economics, politics, and society, with realistic orbital mechanics.