Windblown NGC 3199

NGC 3199 lies about 12,000 light-years away, a glowing cosmic cloud in the nautical southern constellation of Carina. The nebula is about 75 light-years across in this narrowband, false-color view. Though the deep image reveals a more or less complete bubble shape, it does look very lopsided with a much brighter edge along the top. Near the center is a Wolf-Rayet star, a massive, hot, short-lived star that generates an intense stellar wind. In fact, Wolf-Rayet stars are known to create nebulae with interesting shapes as their powerful winds sweep up surrounding interstellar material. In this case, the bright edge was thought to indicate a bow shock produced as the star plowed through a uniform medium, like a boat through water. But measurements have shown the star is not really moving directly toward the bright edge. So a more likely explanation is that the material surrounding the star is not uniform, but clumped and denser near the bright edge of windblown NGC 3199. via NASA https://ift.tt/3nQ2kKB

Wikipedia article of the day for May 6, 2021

Wikipedia article of the day is Death of Mark Saunders. Check it out: Article-Link Summary: Mark Saunders was a British barrister who struggled with depression and alcoholism. On 6 May 2008 he repeatedly fired a shotgun from a window of his home in Markham Square, London. When armed police arrived, Saunders fired at their vehicle (example pictured) and a siege began. Saunders fired twice more and police returned fire, slightly wounding him. Saunders then waved the shotgun out of a window in the direction of a group of police officers; seven officers fired eleven shots, of which at least five struck him. Saunders was pronounced dead at a waiting ambulance. An inquest was held where the jury returned a verdict of lawful killing, but found several flaws in the police handling of the incident. They did not consider that any of these significantly contributed to the outcome. They could not decide whether Saunders had intentionally provoked a lethal response (“suicide by cop”). In 2010, the Metropolitan Police created a unit of senior officers to manage similar incidents.