Science news

• NASA's Cassini spacecraft flies between Saturn and rings in historic 1st

  26-04-2017 20:15 via cbc.ca
  
  NASA's Cassini spacecraft ventured Wednesday into the never-before-explored region between Saturn and its rings. But flight controllers won't know how everything went until Thursday when they are back in touch with the craft.
  
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• Ancient Bones Spark Fresh Debate over First Humans in the Americas

  26-04-2017 20:15 via rss.sciam.com
  
  A study of remains found in southern California puts an unknown human species in the New World more than 100,000 years earlier than expected—but critics aren’t buying it
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• The next big thing in construction robotics is building big

  26-04-2017 20:00 via cbc.ca
  
  Researchers built a robot that can print 3D structures at architectural scale — one of a growing number of efforts to shakeup the construction industry with new technology.
  
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• Study suggests humans were in North America 100,000 years earlier than believed

  26-04-2017 19:01 via cbc.ca
  
  A team of scientists believe they have found evidence of human activity in North America that dates back 130,000 years ago — more than 100,000 years earlier than believed.
  
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• First settlers reached Americas 130,000 years ago, study claims

  26-04-2017 19:00
  
  Mastodon site suggests first Americans arrived unexpectedly early.
  
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• Twitter sees first revenue drop since IPO

  26-04-2017 17:47 via cbc.ca
  
  Twitter has never turned a profit, and for the first time since going public in 2013, it reported a decline in revenue from the previous year.
  
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• Dog DNA study maps breeds across the world

  26-04-2017 17:30
  
  Here are five findings from a massive study of dog breed genomes.
  
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• Antarctic Penguin Populations in Flux as the Planet Warms

  26-04-2017 14:45 via rss.sciam.com
  
  A new report reveals large declines in some populations but increases in others 
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• Long naps lead to less night sleep for toddlers

  26-04-2017 13:00
  
  Daytime naps can steal sleep from the night, a small study of toddlers suggests.
  
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• One Big Legal Obstacle Keeps Trump from Undoing Greenhouse Gas Regulation

  26-04-2017 12:45 via rss.sciam.com
  
  The Supreme Court backed a federal rule that CO2 emissions endanger health, and the White House is having trouble working around it
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• Dolphin vaginas no longer a total mystery, thanks to Canadian scientist

  26-04-2017 12:00 via cbc.ca
  
  Marine mammals have surprisingly fascinating sex lives, including constantly erect penises and vaginas with multiple folds. Researchers are trying to understand the ins and outs.
  
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• Discovery of plastic-eating caterpillar could prove a boon in waste disposal

  26-04-2017 11:00 via cbc.ca
  
  An accidental discovery of a caterpillar that eats plastic could one day lead to the elimination of plastic waste, researchers hope.
  
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• Sun's eruptions might all have same trigger

  26-04-2017 06:00
  
  (Durham University) Large and small scale solar eruptions might all be triggered by a single process, according to new research that leads to better understanding of the sun's activity.
  
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• Sequencing the station: Investigation aims to identify unknown microbes in space

  26-04-2017 06:00
  
  (NASA/Johnson Space Center) Building on the ability to sequence DNA in space and previous investigations, Genes in Space-3 is a collaboration to prepare, sequence and identify unknown organisms, entirely from space.
  
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• Scientists propose mechanism to describe solar eruptions of all sizes

  26-04-2017 06:00
  
  (NASA/Goddard Space Flight Center) From long jets to massive explosions of solar material and energy, eruptions on the sun come in many shapes and sizes. Scientists now propose that a universal mechanism can explain the whole spectrum of solar eruptions.
  
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• Saturn spacecraft toting CU Boulder instrument starts swan song

  26-04-2017 06:00
  
  (University of Colorado at Boulder) Toting a $12 million instrument built by the University of Colorado Boulder, NASA's Cassini spacecraft made the first of 22 dives between the rings of Saturn and the gaseous planet today, the beginning of the end for one of NASA's most successful missions ever.
  
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• NASA satellites see Tropical Storm Muifa in Northwestern Pacific Ocean

  26-04-2017 06:00
  
  (NASA/Goddard Space Flight Center) Tropical Storm Muifa continued to move through the open waters of the Northwestern Pacific Ocean as NASA's Aqua satellite gathered temperature data on the storm.
  
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• From volcano's slope, NASA instrument looks sky high and to the future

  26-04-2017 06:00
  
  (NASA/Goddard Space Flight Center) On the rust-colored north flank of one of Earth's largest volcanoes, a backpack-sized instrument monitors our atmosphere and, at the same time, helps set the stage for possible human exploration of other worlds.
  
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• Scientists successfully grow lambs in artificial womb, offering hope for preemies

  26-04-2017 01:08 via cbc.ca
  
  Researchers are creating an artificial womb to improve care for extremely premature babies — and animal testing suggests the first-of-its-kind watery incubation so closely mimics mom that it just might work.
  
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