Signs of Life Found in 4.5 Billion Year Old Meteorites

Signs of Life Found in 4.5 Billion Year Old Meteorites

A group of scientists recently found evidence of the ingredients for life in two meteorites that landed on Earth some 20 years ago. The two specimens, named Zag and Monahans, were found when one crashed near a group of boys playing basketball in Texas, while the other crash landed in Morocco a few months later.

According to a study published in Science Advances the meteorites contain liquid water, carbon, oxygen, and nitrogen trapped inside salt crystals. One scientist compared the finding to a fly trapped in amber, as the meteorites are likely to be 4.5 billion years old and contain the basic elements necessary for life.

“This is really the first time we have found abundant organic matter also associated with liquid water that is really crucial to the origin of life and the origin of complex organic compounds in space,” said Queenie Chan, the study’s lead author and planetary scientist at The Open University in the U.K.

The meteorites are thought to have originated from two celestial bodies,Hebe and Ceres, that orbit in the asteroid belt between Mars and Jupiter. It is thought that, due to the similarity of the meteorites, the two may have impacted each other and mixed material.

 

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NASA scientists have been intrigued by Ceres lately, continuing the Dawn spacecraft’s mission to study the dwarf planet two and a half years longer than intended.

Ceres is the largest object within the asteroid belt and could potentially harbor life. NASA believes that there once may have been a vast ocean on the dwarf planet and are sending Dawn within 20 miles of Ceres to study its surface.

There are still other preserved crystals from the meteorites that have yet to be studied by scientists who are hoping to find further evidence of liquid water and other life-supporting elements.



Is Rh-Negative Blood Alien In Origin?

Is Rh-Negative Blood Alien In Origin?

As humans, we believe we evolved from apes and the Rh factor in our blood even derives its name from the Rhesus Macaque. But when it comes to the antigens in our blood there’s a small percentage of the population with a strange anomaly, leading some to question if Rh-negative blood is alien in origin.

Where Does Rh Negative Blood Come From?

There are 35 blood group systems organized by our genetic structure to carry the information that produces antigens. Antigens are molecules that produce an immune response, so when a foreign substance or toxin enters our system, antigens tell our bodies to attack them.

Within the Rh system there are 61 antigens, with the D antigen determining whether one is Rh-positive of Rh-negative. This antigen is a sensitive protein that exists on the surface of red blood cells and can react negatively if it comes in contact with Rh-positive blood.

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