M27: The Dumbbell Nebula

What will become of our Sun? The first hint of our Sun’s future was discovered inadvertently in 1764. At that time, Charles Messier was compiling a list of diffuse objects not to be confused with comets. The 27th object on Messier’s list, now known as M27 or the Dumbbell Nebula, is a planetary nebula, one of the brightest planetary nebulae on the sky — and visible toward the constellation of the Fox (Vulpecula) with binoculars. It takes light about 1000 years to reach us from M27, featured here in colors emitted by hydrogen and oxygen. We now know that in about 6 billion years, our Sun will shed its outer gases into a planetary nebula like M27, while its remaining center will become an X-ray hot white dwarf star. Understanding the physics and significance of M27 was well beyond 18th century science, though. Even today, many things remain mysterious about planetary nebulas, including how their intricate shapes are created. via NASA https://ift.tt/3hwt9lf

Wikipedia article of the day for July 12, 2021

Wikipedia article of the day is National Union of Freedom Fighters. Check it out: Article-Link Summary: The National Union of Freedom Fighters (NUFF) was an armed Marxist revolutionary group in Trinidad and Tobago. The group fought a guerrilla campaign to overthrow the government of Prime Minister Eric Williams following the failed 1970 Black Power uprising and a mutiny in the Trinidad and Tobago Regiment. NUFF formed from the Western United Liberation Front, a loose grouping of largely unemployed men from the western suburbs of Port of Spain. NUFF drew disaffected members of the National Joint Action Committee, a Black Power organisation, and established a training camp in south Trinidad. In 1972 and 1973 NUFF attacked police posts to acquire weapons, robbed banks, and carried out an insurgent campaign against the government. With improved intelligence capabilities, the government eventually killed or captured most of its leadership. Eighteen NUFF members and three policemen were killed over the course of the insurgency. NUFF was anti-imperialist and anti-capitalist and was notable for the extent to which women played an active role in the organisation, including among its guerrilla fighters.