Cosmic ‘Dust factory’ reveals clues to how Stars are Born

This artist's illustration of Supernova 1987A reveals the cold, inner regions of the exploded star's remnants (red) where tremendous amounts of dust were detected and imaged by ALMA. This inner region is contrasted with the outer shell (blue), where the energy from the supernova is colliding (green) with the envelope of gas ejected from the star prior to its powerful detonation. Credit: A. Angelich; NRAO/AUI/NSF

This artist’s illustration of Supernova 1987A reveals the cold, inner regions of the exploded star’s remnants (red) where tremendous amounts of dust were detected and imaged by ALMA. This inner region is contrasted with the outer shell (blue), where the energy from the supernova is colliding (green) with the envelope of gas ejected from the star prior to its powerful detonation. Credit: A. Angelich; NRAO/AUI/NSF

A group of scientists led by researchers at Cardiff University have discovered a rich inventory of molecules at the centre of an exploded star for the very first time. 2 previously undetected molecules, formylium (HCO+) and sulphur monoxide (SO), were found in the cooling aftermath of Supernova 1987A, 163,000 light years away in a nearby neighbour of our own Milky Way galaxy...

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Another Bee in the Beehive—Astronomers discover binary star in the NGC 2632 cluster

Beehive Cluster. Credit: Sven Kohle and Till Credner

Beehive Cluster. Credit: Sven Kohle and Till Credner

Astronomers have detected a new low-mass eclipsing binary star in an open cluster named NGC 2632, better known as the Beehive Cluster (or Praesepe). The newly identified binary, designated PTFEB132.707+19.810, contains two late-type stars much smaller and less massive than the sun.

NGC 2632 is an open star cluster that looks like a hive of bees in the constellation Cancer. Located some 577 light years away, it is one of the nearest open clusters to the solar system. Due to its proximity, this cluster is the target of numerous observations conducted by astronomers searching for new objects, including eclipsing binaries. Such binaries could be very helpful in improving our known theoretical stellar evolution models.

Although PTFEB132...

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Drinking Alcohol while Pregnant could have Transgenerational Effects

Kelly Huffman: Charles W. Abbott et al. Prenatal Ethanol Exposure and Neocortical Development: A Transgenerational Model of FASD, Cerebral Cortex (2017). DOI: 10.1093/cercor/bhx168

Kelly Huffman: Charles W. Abbott et al. Prenatal Ethanol Exposure and Neocortical Development: A Transgenerational Model of FASD, Cerebral Cortex (2017). DOI: 10.1093/cercor/bhx168

Soon-to-be mothers have heard the warning – don’t drink while pregnant. CDC has issued numerous statements about the dangers of alcohol consumption during pregnancy, as it can lead to Fetal Alcohol Spectrum Disorders (FASD) in newborns. Despite this, many women drink during pregnancy, a choice that scientists have known for years could hurt these mothers’ children. Today, there is a new reason to stop – drinking alcohol during pregnancy will not only affect her unborn child, but may also impact brain development and lead to adverse outcomes in her future grand- and even great-grandchildren.

“Traditionally, p...

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Gold Remembers: ‘Shape Memory’ Effect Demonstrated in Gold Particles

Self-Healing and Shape Memory Effects in Gold Microparticles through the Defects-Mediated Diffusion. Advanced Science, 2017; 1700159 DOI: 10.1002/advs.201700159

Self-Healing and Shape Memory Effects in Gold Microparticles through the Defects-Mediated Diffusion. Advanced Science, 2017; 1700159 DOI: 10.1002/advs.201700159

Researchers from the Technion-Israel Institute of Technology and Germany have demonstrated for the first time the phenomena of shape memory and self-healing in gold microparticles. Achieved through defects-mediated diffusion in the particle, the discovery could one day lead to development of micro- and nano-robots capable of self-repair; mechanically stable and damage-tolerant components and devices; and targeted drug delivery.

Shape-memory materials are characterized by the ability to repair the damage caused to them (such as plastic deformation) and to recover their original shape...

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