Mayan Discovery: Ancient Monument Reveals Royal Struggle

A nearly 1,500-year-old Mayan stone monument, inscribed with a story of an ancient power struggle, has been unearthed in Guatemala.

The stone slab, which dates to A.D. 564, was found in a small tunnel that adjoins the tomb of an ancient queen beneath the Mayan temple at the site of El Peru-Waka'.

NASA wants to exceed the speed of light

Nobody is surprised that NASA wishes to exceed the speed of light, which to our knowledge is the fastest in the universe. Most potentially habitable planets found the U.S. space agency are several light years away, meaning that for many years we would need to travel at the speed of light to reach them. This is no doubt a problem, because currently we are not able to achieve even a tenth of the speed of light, although the agency supergeniuses already working on it.

Physicist Harold G. White hopes to use speed travel "warp" (or push warp ) to exceed the speed of light. 

Why does the universe have fewer dwarf galaxies which should?

Turn and shoot the Question: "What about the sun?". "He went to sleep," his mother answered thinking an explanation that satisfies the curiosity of his three years. "He night," says halfway between the statement and the question and question again looking at the sky: "What about the moon? In these sentences, little seems to sum up, with its childlike simplicity-the concerns, from primitive man to the present day, led mankind to observe the sky for answers to many questions.

Probe NASA image of Earth is 1.5 billion km

NASA released the first images of the Earth from untreated about 1.5 billion kilometers. The record was made by the Cassini spacecraft, orbiting Saturn, and will make part of a mosaic that shows the giant planet and our planet.

Mars suffered early loss of most of the atmosphere

When I was a young man with less than 500 million years ago, Mars suffered a catastrophe that hung its magnetic field, leave it exposed to strong solar winds and caused him to lose most of its atmosphere. This is the most plausible story for children on the planet, according to the latest findings of the rover Curiosity.

The conclusion is in two studies published today in the journal "Science" that reveal with unprecedented precision the composition of air on Mars.

A study warns that sea level may rise 20 meters by the end of the century

The ice of the Antarctic "is much more sensitive" to climate changes than estimated, according to a scientific study which says that sea level could rise 20 meters to the end of the century if this area, the West Antarctic and Greenland, were to melt as in the Pliocene.

These are two of the findings of an international study published in the journal Nature Geo science, led by researchers from Imperial College London and Spanish participation.

Chemically induced pluripotent stem cells

Scientists have been able to reprogram the mature human stem cells, using only the chemical compound (without genetic manipulation).

A new method of obtaining cells are as versatile as embryonic stem cells, reduces the risk of developing cancer or of mutations that can occur as a result of stem cell therapies, "reprogrammed" with the introduction of additional genes.

Since then, in 2006, it was announced the discovery of induced pluripotent stem cells ( iPSCs ), scientists have sought to reduce the number of additional genes required for such cells. But it is always required at least one encoding a protein Oct-4 .