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Scientists excited with sudden discovery of missing link in black hole evolution

Scientists have found what is known as an intermediate-mass black hole (IMBH), which is the elusive link between collapsed stars and the supermassive black holes that eventually form and become the center of galaxies.

Mysterious radio burst from space is unusually close - and especially baffling -- Science & Technology -- Sott net

Extremely magnetic, ultra-dense stars It s taken nearly 15 years to begin untangling the mystery of fast radio bursts. Initial hypotheses included evaporating black holes, flaring dead stars, colliding dense objects, and yes, even alien technologies (spoiler: it s not aliens). Further clues, from nano-scale structures within the radio bursts to their millisecond duration and intensity, suggested they must be produced by extremely dense, compact objects. So, scientists turned to objects such as black holes and neutron stars, which are left over when massive stars blow themselves to bits in supernovae. Later, observations suggested that some bursts are born in regions with extreme magnetic fields, further suggesting these mysterious signals could come from magnetars.

Mysterious radio burst from space is unusually close—and especially baffling

Mysterious radio burst from space is unusually close and especially baffling Nadia Drake © Image by ASA, ESA and the Hubble Heritage Team (STScI/AURA) Discovered by the German astronomer Johann Elert Bode in 1774, M81 is one of the brightest galaxies in the night sky. It is located 11.6 million light-years from Earth in the constellation Ursa Major and has an apparent magnitude of 6.9. Through a pair of binoculars, the galaxy appears as a faint patch of light in the same field of view as M82. A small telescope will resolve M81’s core. The galaxy is best observed during April. This stunning Hubble image was assembled using observations in visible and infrared light. The galaxy’s spiral arms, which wind all the way down into its nucleus, are made up of young, bluish, hot stars formed in the past few million years. They also host a population of stars formed in an episode of star formation that started about 600 million years ago. Ultraviolet light from hot, y

Mysterious radio burst from space is unusually close—and especially baffling

Mysterious radio burst from space is unusually close and especially baffling A fast radio burst, one of the most perplexing phenomena seen by astronomers, has been detected among a nearby population of ancient stars. ByNadia Drake Email Bright, fleeting blasts of radio waves coming from the vicinity of a nearby galaxy are deepening one of astronomy’s biggest mysteries. The repeating bursts of energy seem to be coming from an ancient group of stars called a globular cluster, which is among the last places astronomers expected to find them. Often originating billions of light-years away, the extremely bright, extremely brief bursts of radio waves known as fast radio bursts, or FRBs, have defied explanation since they were first spotted in 2007. Based on observations to date, scientists surmised that the bursts are powered by young, short-lived cosmic objects called magnetars.

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