There are valley networks branching across the Martian surface, which makes it reasonable to believe that water once flowed on the Red Planet.

Where water might have come from would be another mystery. Whether it bubbled up from underground or fell as rain or snow is the subject of speculation and debate but a new study says it can put a new check mark in the 'precipitation' column. The authors say that water-carved valleys at four different locations on Mars appear to have been caused by runoff from orographic precipitation — snow or rain that falls when moist prevailing winds are pushed upward by mountain ridges.

On May 27th, 2006 the ground on Java, an Indonesian island, shook with a magnitude 6.3 earthquake. The epicenter was located 25 km southwest of the city of Yogyakarta and initiated at a depth of 12 km.

The earthquake took thousands of lives, injured ten thousand more and destroyed buildings and homes. 47 hours later, about 250 km from the earthquake hypocenter, a mud volcano formed that came to be known as "Lusi", short for "Lumpur Sidoarjo". 

Hot mud erupted in the vicinity of an oil drilling-well, shooting mud up to 50 m into the sky and flooding the area. It continues to erupt today and scientists expect the mud volcano to be active for many more years

Eruption of mud volcano was natural - not an oil well

Global warming is on hold, at least temporarily, and being five years behind means we have time for a legitimate basic research solution to become viable technology.

A classic trash-to-treasure story would be producing electricity from carbon dioxide. A new method uses CO₂ from electric power plant and other smokestacks as the raw material for making electricity.

Appalachian-Americans rejoice, archaeologists have added a new piece to your heritage puzzle. The remains of the earliest European fort in the interior of (what is now) the United States have been discovered - and it gives new insight into both the start of the U.S. colonial era and the imperialism of the Spanish.

Concerned parents have been worried about the potential impact of exposure to low levels of mercury on the developing brain, such as when pregnant women consume fish, and that has led to claims that the chemical may be responsible for behavioral disorders such as autism.

Synthetic materials made from organic polymers, like polyurethane foams, usually burn very well due to their high carbon content. They not only burn easily; depending on their chemical composition they can produce toxic gases such as hydrogen cyanide or carbon monoxide.

Upholstered furniture and mattresses commonly use polyurethane foams so they have to be treated with flame retardants.