About: admin

Recent Posts by admin

Earth’s water may have originally been formed deep within its mantle, study shows

A new study led by a team of scientists at UCD shows that a reaction betwen silicon dioxide that is found in quartz crystals and fluid hydrogen at high temperatures and pressure, found in the earth’s upper mantle, can create water. Credit: flickr-jgsgeology Earth’s water may have originally been formed by chemical reactions deep within the planet’s mantle, according to research led by University College Dublin. The new theory offers an alternative explanation as to how the life-giving liquid may have originated on Earth. Previously, scientists have suggested that comets that collided with the planet could have deposited large amounts of ice on the Earth which later melted, forming water. The investigators carried out computer simulations which found that reactions between high-pressure and high-temperature fluid hydrogen and silicon dioxide in quartz, found in Earth’s upper mantle, can form liquid water under the right conditions. The simulations were carried out by.
more info No comments

Discovery of first binary-binary calls solar system formation into question

Credit: University of Florida   Everything we know about the formation of solar systems might be wrong, says University of Florida astronomy professor Jian Ge and his postdoc, Bo Ma. They’ve discovered the first “binary–binary” – two massive companions around one star in a close binary system, one so-called giant planet and one brown dwarf, or “failed star” The first, called MARVELS-7a, is 12 times the mass of Jupiter, while the second, MARVELS-7b, has 57 times the mass of Jupiter. Astronomers believe that planets in our solar system formed from a collapsed disk-like gaseous cloud, with our largest planet, Jupiter, buffered from smaller planets by the asteroid belt. In the new binary system, HD 87646, the two giant companions are close to the minimum mass for burning deuterium and hydrogen, meaning that they have accumulated far more dust and gas than what a typical collapsed disk-like gaseous cloud can provide..
more info No comments

Saturn’s bulging core implies moons younger than thought

Saturn’s moon Dione, foreground, appears darker than the moon Tethys because it has a lower surface albedo, as shown in a photograph taken from the Cassini spacecraft on March 23, 2010. At the time, Cassini was about 746,000 miles from Dione and about 1.1 million miles from Tethys. Credit: NASA/Jet Propulsion Lab   Freshly harvested data from NASA’s Cassini mission reveals that Saturn’s bulging core and twisting gravitational forces offer clues to the ages of the planet’s moons. Astronomers now believe that the ringed planet’s moons are younger than previously thought. “All of these Cassini mission measurements are changing our view of the Saturnian system, as it turns our old theories upside down. It takes one good spacecraft to tell us how wrong we were in the past,” said Radwan Tajeddine, Cornell research associate in astronomy and a member of the European-based Encelade (pronounced en-CELL-ad) scientific team that pored over.
more info No comments

2017 is the year

I completed my scientific paper and yesterday located the best journal for its publication. If everything goes well in 47 days my paper will be published and soon thereafter reported on. Just wanted to say thanks to all of my subscribers to my website who supported me by showing interest. Y’all are in the front row for history about to be made..
more info No comments

Chemistry says Moon is proto-Earth’s mantle, relocated: the leading hypotheses for the origin of the Moon disproved

Two recent models for the formation of the moon, one that allows exchange through a silicate atmosphere (top), and another that creates a more thoroughly mixed sphere of a supercritical fluid (bottom), lead to different predictions for potassium isotope ratios in lunar and terrestrial rocks (right). Credit: Kun Wang Measurements of an element in Earth and Moon rocks have just disproved the leading hypotheses for the origin of the Moon. Tiny differences in the segregation of the isotopes of potassium between the Moon and Earth were hidden below the detection limits of analytical techniques until recently. But in 2015, Washington University in St. Louis geochemist Kun Wang, then the Harvard Origins of Life Initiative Prize postdoctoral fellow, and Stein Jacobsen, professor of geochemistry at Harvard University, developed a technique for analyzing these isotopes that can hit precisions 10 times better than the best previous method . Wang and Jacobsen now.
more info No comments