Classification of meteorites

While there are different classifications, one of the most important is the collecting feature of composition and origin of meteorites. In this division we find:

1) Primitive: is the most primitive material in the solar system (they have several billion years) that have remained virtually unchanged since they formed, ie never suffered melting or differentiation processes.

The universe is older than before idea

The European Planck spacecraft has gained the most accurate and detailed map ever made ​​of the oldest light in the universe. The results of this map suggest that the universe is expanding more slowly than scientists thought, and that is 13,800 million years, 100 million years older than previously believed. The data also show that in the universe there is less energy and dark matter than previously known.

Five quotation marks from Einstein on relativity

A day like today, namely the March 20, 1916, Albert Einstein formulated his theory of relativity. Here are five clever lines set by the German physicist about his most famous creation.

"When courting a beautiful girl, an hour seems like a second. But you sit on red hot coal; a second seems like an hour. That's relativity." Albert Einstein.

Study designate that "megavolcanes" swab out half the world's species Agencies

New techniques for dating rocks confirmed that a chain of giant volcanic eruptions 200 million years ago caused the sudden extinction of half the species now inhabiting the Earth.

The result of the research provides far more precise date of when this occurred, for 564 000 201 000 000 000 years ago, in the Triassic extinction event known as Final, or fourth mass extinction, when the eruption of a volcano chain revolutionized the climate by emitting large amounts of carbon dioxide into the atmosphere, according to the report in the journal Science.

Scientists capture the image of a extraordinary object orbiting two stars giant

Two years ago, gave scientists reported in the journal Science the existence, 200 light years away from Earth, a planet with two suns, like the fictional world Tatooine , home of the young Skywalker of Star Wars. Later, astronomers found new examples of similar worlds and suggested that there may be millions of them. Now, an international team of scientists led by Philippe Delorme space, Joseph Fourier University in Grenoble, France, has taken what may be the first photograph of a planet orbiting two suns.

Young, hot and blue

The universe is very old - well 13.8 billion years. Our home galaxy, the Milky Way, is also very old - some of their stars bring it to more than 13 billion years (eso0425).

Nevertheless, there is much going on: New objects are created, others are destroyed. In this picture you can see some of the newcomers: young stars that make up the star cluster NGC 2547.

But how young these cosmic youngsters really are? Although her exact age remains uncertain,

Russian super-heavy carrier rocket will save the Earth from the lethal asteroid

President of RSC Energies of Vitaly Lopota said that through the threat of asteroids and comets can handle only super-heavy carrier rocket. It can be created based on existing missile components from the program "LV Energy." "This launch vehicle able to deliver and deploy components of the system to detect and track (if necessary - and thermonuclear charge) to a dangerous space objects," - said the president of the corporation.