The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

A team of international researchers has confirmed the discovery of an Earth-like exoplanet that may have the right conditions ...

It's responsible for the orbits of the planets and ... parent planet. Gravity not only maintains the stability of these orbits but also influences phenomena like tides on Earth, caused by the ...

Astronomers may have found a star racing through our galaxy at an incredible speed—dragging a planet along with it! If ...

Gravity is changing parts of our planet deep within the crust ... Instead, different areas – like an ocean inside the Earth – can change how strong that structure is. As a result, gravity ...