Paul Burnham posted a photo:
The tiny Swedish town of Insjön has been left shaken, traumatised and probably put off its breakfast after two porcine-feature exhibitionists launched a laser-enhanced sex spree on Friday.…
A Stanford University researcher finds that products purchased mainly by poor people were increasing in price much more quickly than those purchased by the wealthy.
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Researchers have for the first time, decoded and predicted the brain activity patterns of word meanings within sentences, and successfully predicted what the brain patterns would be for new sentences. The study used functional magnetic resonance imaging (fMRI) to measure human brain activation.
Image credit: University of Rochester/Andrew Anderson, Department of Brain and Cognitive Sciences
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This is a scanning electron microscope (SEM) image of soil dust, composed mainly of silicon-oxygen minerals. This particle was collected along a highway in Scottsdale, Arizona, as part of a research study conducted by Arizona State University researchers on the flow of air pollution in the Phoenix metro area. Dust kicked up by road traffic creates a large proportion of the particles, while others are the combustion products of gasoline or diesel fuel, sometimes in combination with dust.
Image credit: Hua Xin, Ph.D., Arizona State University
These oldest known stars, date from before the Milky Way Galaxy formed, when the Universe was just 300 million years old. The stars, found near the center of the Milky Way, are surprisingly pure but contain material from an even earlier star, which died in an enormous explosion called hypernova. The discovery and analysis of the nine pure stars challenges current theories about the environment of the early Universe from which these stars formed.
"These pristine stars are among the oldest surviving stars in the Universe, and certainly the oldest stars we have ever seen," said Louise Howes from The Australian National University (ANU), part of the 2015 discovery team along with the University of Cambridge. "These stars formed before the Milky Way, and the galaxy formed around them."
"The stars have surprisingly low levels of carbon, iron and other heavy elements, which suggests the first stars might not have exploded as normal supernovae," said Ms Howes. "Perhaps they ended their lives as hypernovae - poorly understood explosions of probably rapidly rotating stars producing 10 times as much energy as normal supernovae."
Project leader Professor Martin Asplund, from ANU Research School of Astronomy and Astrophysics said finding such rare relic stars amongst the billions of stars in the Milky Way center was like finding a needle in a haystack.
"The ANU SkyMapper telescope has a unique ability to detect the distinct colors of anaemic stars - stars with little iron - which has been vital for this search," said Professor Asplund.
Following the team's discovery in 2014 of an extremely old star on the edge of the Milky Way, the team focused on the dense central parts of the galaxy, where stars formed even earlier. The team sifted through about five million stars observed with SkyMapper to select the most pure and therefore oldest specimens, which were then studied in more detail using the Anglo-Australian Telescope near Coonabarabran in New South Wales and the Magellan telescope in Chile to reveal their chemical make-up.
The team also demonstrated that the stars spend their entire lives near the Milky Way center and are not just passing through, a further indication that the stars really are the oldest known stars in the Universe.
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The Daily Galaxy via Australian National University
Image credit: ESO and https://upload.wikimedia.org/wikipedia/commons/9/9e/Milky_Way_Arch.jpg
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Several thousand years ago, a star some 160 000 light-years away from us exploded, scattering stellar shrapnel across the sky. The aftermath of this energetic detonation is shown here in this striking image from the NASA/ESA Hubble Space Telescope's Wide Field Camera 3 .
The exploding star was a white dwarf located in the Large Magellanic Cloud, one of our nearest neighbouring galaxies. Around 97% of stars within the Milky Way that are between a tenth and eight times the mass of the Sun are expected to end up as white dwarfs. These stars can face a number of different fates, one of which is to explode as supernovae, some of the brightest events ever observed in the Universe. If a white dwarf is part of a binary star system, it can siphon material from a close companion. After gobbling up more than it can handle — and swelling to approximately one and a half times the size of the Sun — the star becomes unstable and ignites as a Type Ia supernova.
This was the case for the supernova remnant pictured here, which is known as DEM L71. It formed when a white dwarf reached the end of its life and ripped itself apart, ejecting a superheated cloud of debris in the process. Slamming into the surrounding interstellar gas, this stellar shrapnel gradually diffused into the separate fiery filaments of material seen scattered across this skyscape.
Credit: ESA/Hubble & NASA, Y. Chu
Giant sulphur (Colias gigantea) collected in Churchill, Manitoba, Canada, and photographed at the Centre for Biodiversity Genomics (sample ID: 04HBL003032; specimen record: http://www.boldsystems.org/index.php/Public_RecordView?processid=LCH032-04; BIN: http://www.boldsystems.org/index.php/Public_BarcodeCluster?clusteruri=BOLD:AAA3447)