Impact craters

  An impact crater is an approximately circular depression in the surface of a planet, moon or other solid body in the Solar System, formed by the hypervelocity impact of a smaller body with the surface. In contrast to volcanic…
5 Worst natural disasters

Mount St Helens Mount St Helens is located in the Cascade mountain range in the state of Washington in the United States and is famous for its devastating 1980 eruption, which killed 57 people. Among the dead were a geologist…
The mystery of earthquakes

Earthquakes explained. An earthquake (also known as a quake, tremor or temblor) is the result of a sudden release of energy in the Earth’s crust that creates seismic waves. The seismicity, seismism or seismic activity of an area refers to…
The future of earth.

What does the distant future hold for earth? Future Earth The biological and geological future of the Earth can be extrapolated based upon the estimated effects of several long-term influences. These include the chemistry at the Earth’s surface, the rate…
Earth under attack.

The Late Heavy Bombardment The Late Heavy Bombardment (commonly referred to as the lunar cataclysm, or LHB) is a hypothetical event around 4.1 to 3.8 billion years ago (Ga). During this event a very large number of the impact craters…
How the moon was formed

How the moon was formed. 4500Ma The giant impact hypothesis states that the Moon was formed out of the debris left over from a collision between the Earth and a body the size of Mars, approximately 4.5 Gya (four and…
How the earth was formed

How the earth was formed: 4600Ma The history of the Earth concerns the development of the planet Earth from its formation to the present day. Nearly all branches of natural science have contributed to the understanding of the main events…
What was earth like before man?

Desert Earth A vast desert formed in Earth’s prehistoric past when the supercontinent of Pangaea straddled the equator and stretched to the poles. Pangaea’s position influenced ocean circulation patterns, and its huge size meant that there were vast areas where…
More amazing pictures

Rano Kau is an extinct volcano that rises out of the southwestern part of Easter Island. It is almost a mile across and actually has its own self contained climate as a result of its inner walls being sheltered from…