Cassini ran through the ‘big empty’

Written by Jonathan Amos

The American space agency says the Cassini satellite encountered very few particles as it dived between Saturn and its rings last week.

There were fears that the probe might hit fragments of ice or rock, and that these could cause significant damage.

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Researchers identify 6,500 genes that are expressed differently in men and women

Written by Weizmann Institute of Science

Men and women differ in obvious and less obvious ways — for example, in the prevalence of certain diseases or reactions to drugs. How are these connected to one’s sex? Weizmann Institute of Science researchers recently uncovered thousands of human genes that are expressed — copied out to make proteins — differently in the two sexes. Their findings showed that harmful mutations in these particular genes tend to accumulate in the population in relatively high frequencies, and the study explains why. The detailed map of these genes, reported in BMC Biology, provides evidence that males and females undergo a sort of separate, but interconnected evolution.

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Oddity: Are Trump’s Climate Science Enemies Proving Him Right?

Written by Michael Bastach

A study meant to debunk a claim made by Environmental Protection Agency (EPA) Administrator Scott Pruitt in his confirmation hearing ended up doing the opposite — it proved him right.

The study, published Thursday in the journal Nature, found that Pruitt’s claim of a “leveling off of warming” over the past two decades is unsupported by satellite-derived temperature data, which measures the lowest few miles of the atmosphere.

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What To Do with ‘Uncorrectable Science?’

Written by Joseph E Postma

What happens if science is actually uncorrectable, or becomes uncorrectable?  This is the response I get from other scientists who I ask to consider the skeptical arguments which debunk climate alarm:

“since we expect climate scientists to trust our own work and expertise in astrophysics, then why wouldn’t we return that trust to the experts in climate science?”

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New research shows illegal levels of arsenic found in baby foods

Written by ScienceDaily

In January 2016, the EU imposed a maximum limit of inorganic arsenic on manufacturers in a bid to mitigate associated health risks. Researchers at the Institute for Global Food Security at Queen’s have found that little has changed since this law was passed and that 50 per cent of baby rice food products still contains an illegal level of inorganic arsenic.

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Triatomic molecules cooled with lasers

Written by Hamish Johnston, Physics World

Molecules containing three atoms have been laser cooled to ultracold temperatures for the first time. The feat was achieved by John Doyle and colleagues at Harvard University in the US, who used a technique called Sisyphus cooling to chill an ensemble of about a million strontium-monohydroxide molecules to 750 μK. The team says the work opens the door to a range of applications, including quantum simulation and precision measurements.

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What is the electric universe?

Written by S Schirott

Open a standard textbook in astronomy and read the discussion of galaxies, stars, and planets. It will appear that gravity alone organized the cosmos and now keeps it running. We all know that electricity powers our lights runs our computers and, in an unleashed form, creates static shocks and awe-inspiring lightning bolts.

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