New High HD Image OF Earth

NASA ha released another high HD Photograph of Earth Called "Blue Marble". The image is focused on the East, showing Africa, Saudi Arabia and India.

Layers Of The Earth Photos

Four Main Layers of the Earth

1. Crust

2. Mantle

3. Outer Core

4. Inner Core

The interior structure of the Earth, similar to the outer, is layered. These layers can be defined by either their chemical or their rheological properties. The Earth has an outer silicate solid crust, a highly viscous mantle, a liquid outer core that is much less viscous than the mantle, and a solid inner core.

Earth's Magnetic Field Photos

The magnetosphere shields the surface of the Earth from the charged particles of the solar wind and is generated by electric currents located in many different parts of the Earth. It is compressed on the day (Sun) side due to the force of the arriving particles, and extended on the night side.

Earth's magnetic field (and the surface magnetic field) is approximately a magnetic dipole, with the magnetic field S pole near the Earth's geographic north pole and the other magnetic field N pole near the Earth's geographic south pole.

New Earth Like Planet

This artist's conception shows the inner four planets of the Gliese 581 system and their host star, a red dwarf star only 20 light years away from Earth. (Image credit: Lynnette Cook, NASA)

The planet, dubbed "Gliese 581g," is the sixth known planet found orbiting the red dwarf known as Gliese 581, found within the constellation of Libra. The planet was found by teams at the University of California (UC) Santa Cruz, and the Carnegie Institution of Washington, after nearly a decade of observations using the W. M. Keck Observatory in Hawaii.

Image of Earth from Moon