Κυριακή 11 Μαΐου 2014

ScienceDaily: Latest Science News

ScienceDaily: Latest Science News

Astronomers find sun's 'long-lost brother,' pave way for family reunion

Posted: 10 May 2014 12:17 PM PDT

Astronomers have identified the first "sibling" of the Sun -- a star that was almost certainly born from the same cloud of gas and dust as our star. The newly developed methods for locating the Sun's 'siblings' will help other astronomers find other "solar siblings," work that could lead to an understanding of how and where our Sun formed, and how our solar system became hospitable for life.

Paleontologists discover new fossil organism

Posted: 09 May 2014 02:29 PM PDT

Paleontologists have discovered a fossil of a newly discovered organism from the Ediacara Biota. Plexus ricei was a broadly curving tube that resided on the seafloor. Individuals range in size from 5 to 80 cm long and 5 to 20 mm wide, and comprise a rigid median tubular structure and a fragile outer tubular wall. Plexus ricei evolved around 575 million years ago, disappearing from the fossil record around 540 million years ago.

Citrus greening affects roots before leaves

Posted: 09 May 2014 02:25 PM PDT

Although citrus greening enters trees through their leaves, researchers have discovered that the deadly disease attacks roots long before the leaves show signs of damage -- a finding that may help growers better care for trees while scientists work to find a cure.

Toxicologists outline key health and environmental concerns associated with hydraulic fracturing

Posted: 09 May 2014 02:25 PM PDT

Since the rise in the use of hydraulic fracturing of shale to produce natural gas and oil, many have debated the merits and detractions of the practice. Scientists outline how toxicological sciences can be used to determine what risks may or may not be associated with fracking.
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