Science news

• Supermassive black holes give birth to stars, astronomers discover

  28-03-2017 21:17 via cbc.ca
  
  A team of astrophysicists has discovered that supermassive black holes at the centre of galaxies aren't just destroyers of stars, but also their creators.
  
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• Supermassive black hole gets kicked to the galactic curb

  28-03-2017 21:08
  
  Gravitational waves may have given a supermassive black hole a big kick, with enough energy to send it flying toward the edges of its host galaxy.
  
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• Spray-on mosquito repellents are more effective than other devices

  28-03-2017 19:00
  
  To avoid mosquito bites, stick with spray-on repellents and skip the bracelets and citronella candles, a new study says.
  
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• Australia scientists uncover dinosaur footprint that may be world's largest

  28-03-2017 17:15
  
  SYDNEY (Reuters) - Scientists have found what could be the world's largest dinosaur footprint - measuring nearly 1.7 metres (5.6 ft) - on a remote part of Australia's northwestern coastline.
  
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• "Menstrual Cycle on a Chip" Offers a New Window into Female Physiology

  28-03-2017 17:00 via rss.sciam.com
  
  Researchers have completed the first laboratory model of the human female reproductive cycle
  -- Read more on ScientificAmerican.com
  
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• Trump to issue executive order rolling back Obama climate change policies

  28-03-2017 15:50 via cbc.ca
  
  ​President Donald Trump is expected to sign an executive order Tuesday aimed at moving forward on his campaign pledge to unravel former President Barack Obama's plan to curb global warming.
  
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• Trump issues executive order rolling back Obama climate change policies

  28-03-2017 15:50 via cbc.ca
  
  U.S. President Donald Trump signed an executive order on Tuesday to undo Obama-era climate change regulations that his administration says are hobbling oil drillers and coal miners, a move environmental groups have vowed to take to court.
  
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• 2 Canadians win Gairdner Awards for contributions to medical science

  28-03-2017 15:27 via cbc.ca
  
  Two Canadian researchers are among the winners of this year's Gairdner Awards, which recognize some of the most significant medical discoveries made by scientists around the globe.
  
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• Of Mice and Men: Study Pushes Rodents' Home Invasion to 15,000 Years Ago

  28-03-2017 15:00 via rss.sciam.com
  
  Scientists provide a new estimate for when the common house mouse took up residence with humans
  -- Read more on ScientificAmerican.com
  
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• The Genius of Pinheads: When Little Brains Rule​

  28-03-2017 13:00 via rss.sciam.com
  
  Bigger brains are not always better
  -- Read more on ScientificAmerican.com
  
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• Don’t put greasy Q-tips up your kid’s nose, and other nosebleed advice

  28-03-2017 13:00
  
  Nosebleeds in children are common and usually nothing to fret about.
  
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• Subaru telescope detects the shadow of a gas cloud in an ancient proto-supercluster

  28-03-2017 06:00
  
  (National Institutes of Natural Sciences) By using the Suprime-Cam on the Subaru Telescope, a team led by researchers at Osaka Sangyo University succeeded in making the widest map of neutral hydrogen gas in the early universe (corresponding to a time about 11.5 billion years ago). They found that the neutral hydrogen gas widely spreads out across 160 million light-years in and around the proto-supercluster.
  
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• Sharing expert experimental knowledge to expedite design

  28-03-2017 06:00
  
  (King Abdullah University of Science & Technology (KAUST)) A new repository of metabolic information provides a quick tool for designing useful synthetic biological systems.
  
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• Night lights, big data

  28-03-2017 06:00
  
  (Harvard John A. Paulson School of Engineering and Applied Sciences) Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) and the Environmental Defense Fund (EDF) have developed an online tool that incorporates 21 years of night-time lights data to understand and compare changes in human activities in countries around the world.
  
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• NASA sees Tropical Cyclone Debbie make landfall in Queensland

  28-03-2017 06:00
  
  (NASA/Goddard Space Flight Center) Tropical Cyclone Debbie made landfall in Queensland bringing heavy rainfall, hurricane-force winds, rough seas, and flooding. NASA-NOAA's Suomi NPP satellite provided a visible look at the storm from space while NASA's Aqua satellite analyzed cloud temperatures to determine the location of the strongest storms within.
  
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• Igniting a solar flare in the corona with lower-atmosphere kindling

  28-03-2017 06:00
  
  (New Jersey Institute of Technology) Recent images captured by NJIT's 1.6-meter New Solar Telescope at Big Bear Solar Observatory (BBSO) have revealed the emergence of small-scale magnetic fields in the lower reaches of the corona the researchers say may be linked to the onset of a main flare.
  
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• How do we measure temperature? (video)

  28-03-2017 06:00
  
  (American Chemical Society) How do the thermometers in the kitchen or the doctor's office work? Thanks to the laws of thermodynamics, thermometers respond to heat moving from hot to cold as a means of measuring temperature. Clever physical chemists and engineers and even Einstein have made thermometers from a variety of materials. Watch the latest Reactions video here: https://youtu.be/ibmubP26R9M.
  
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• How a young-looking lunar volcano hides its true age

  28-03-2017 06:00
  
  (Brown University) A young-looking volcanic caldera on the moon has been interpreted by some as evidence of relatively recent lunar volcanic activity, but new research suggests it's not so young after all.
  
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