NASAs NuSTARR probes black hole jet mystery is the headline at JPL NASA News – see www.jpl.nasa.gov/news/news.php?feature=6986 …Black holes famously eat lots of material. They are described as ravenous by astrophysicists and the news outlets. However, it seems they cannot consume everything – for a simple reason which appears to contradict the idea they consume anything. Material is required as energy in order to shoot out powerful jets of hot gas (plasma). Along the way this plasma becomes energised enought to radiate extremely bright light, forming two bright columns along the black hole's axis of rotation.
NASAs NuSTARR space telescope and a super fast camera at a space observatory in La Palma have been able to measure the distance the particles travelled in jets before they switched on and became a bright source of light. The study is published in Nature Astronomy – see what you think about the conclusions. According to one of the scientists, the physics of black holes is becoming clear.
Meanwhile, https://phys.org/print428599546.html … monster colliding black holes 'might' be lurking on the edge of spiral galaxies. Scientists hunting for the source of gravitational waves are getting desperate it would seem. None of these black holes has been found yet it is thought to be a region thick with them.
At https://phys.org/print428661750.html … a minor merger kicks supermassive black hole into high gear – in the galaxy, Messier 77.
Over at www.dailygalaxy.com/my_weblog/2017/10/new-dark-matter-picture-nixes-disc… … New dark matter map suggests Big Bang might be all wrong.