There will be incredmental changes in the gravity of Earth during this event.

19 March 2015 

Last updated at 10:58 GMT 

Parts of northern Europe (click here) will experience a rare solar eclipse on the morning of Friday 20 March.
The far north will experience a total eclipse of the Sun, as the Moon casts a shadow onto the surface of the Earth.
But a lot of places further south will also get a taste of the rare spectacle.
Here, BBC News explains this celestial event happens and how to observe it safely - in 90 seconds.
Video by John Galliver and Victoria Gill