First detection of light from behind a black hole

First detection of light from behind a black hole Watching X-rays flung out into the universe by the supermassive black hole at the center of a galaxy 800 million light-years away, Stanford University astrophysicist Dan Wilkins noticed an intriguing pattern. He observed a series of bright flares of X-rays—exciting, but not unprecedented—and then, the telescopes […]

Magnetic fields implicated in the mysterious midlife crisis of stars

Magnetic fields implicated in the mysterious midlife crisis of stars Middle-aged stars can experience their own kind of midlife crisis, experiencing dramatic breaks in their activity and rotation rates at about the same age as our Sun, according to new research published today in Monthly Notices of the Royal Astronomical Society: Letters. The study provides […]

Magnetic ‘balding’ of black holes saves general relativity prediction

Magnetic ‘balding’ of black holes saves general relativity prediction Black holes aren’t what they eat. Einstein’s general relativity predicts that no matter what a black hole consumes, its external properties depend only on its mass, rotation and electric charge. All other details about its diet disappear. Astrophysicists whimsically call this the no-hair conjecture. (Black holes, […]

Balloon Mission May Also Work to Detect Quakes on Venus

Balloon Mission May Also Work to Detect Quakes on Venus An opportunity in 2019 lays the groundwork for balloon-borne detectors on Venus, working to unravel a key mystery. The skies of Venus may become a busy place in the coming decade, using technology field-tested here on Earth. A team out of NASA JPL-Caltech hypothesized that […]

Water Vapour has Been Discovered at Ganymede

Water Vapour has Been Discovered at Ganymede Ganymede has been getting alot of attention lately.  It was the co-star of a video from Juno recently, and now scientists found something to make it an even more intriguing place visit – water vapor. It has been well known for years that Ganymede harbors water, and lots […]

Finding the source of the impactor that wiped out the dinosaurs

Finding the source of the impactor that wiped out the dinosaurs The impactor believed to have wiped out the dinosaurs and other life forms on Earth some 66 million years ago likely came from the outer half of the main asteroid belt, a region previously thought to produce few impactors. Researchers from Southwest Research Institute […]

Three dwarf spheroidal galaxies found to rotate

Three dwarf spheroidal galaxies found to rotate An international team of astrophysicists from the Instituto de Astrofísica de Canarias (IAC), the University of La Laguna (ULL) and the Space Telescope Science Institute (STScI, U.S.) has discovered the presence of transverse rotation (in the plane of the sky) in three dwarf spheroidal galaxies. These are a […]

Global project observes rare meteor showers and meteorite falls

Global project observes rare meteor showers and meteorite falls As billionaires battle it out in a space race that only a handful of the world’s richest persons can play, a highly inclusive international project is looking in the other direction–what’s flying towards Earth–and all are welcome. phys.org Go to Source

Very-high energy gamma-ray emission detected from blazar TXS 1515–273

Very-high energy gamma-ray emission detected from blazar TXS 1515–273 An international team of astronomers has carried out multi-wavelength observations of a blazar known as TXS 1515–273; they detected very-high energy (VHE) gamma-ray emission from this source for the first time. The finding is detailed in a paper published July 20 on arXiv.org. phys.org Go to […]

On the hunt for ‘hierarchical’ black holes

On the hunt for ‘hierarchical’ black holes Black holes, detected by their gravitational wave signal as they collide with other black holes, could be the product of much earlier parent collisions. Such an event has only been hinted at so far, but scientists at the University of Birmingham in the U.K., and Northwestern University in […]

Fermi spots a supernova’s ‘fizzled’ gamma-ray burst

Fermi spots a supernova’s ‘fizzled’ gamma-ray burst On Aug. 26, 2020, NASA’s Fermi Gamma-ray Space Telescope detected a pulse of high-energy radiation that had been racing toward Earth for nearly half the present age of the universe. Lasting only about a second, it turned out to be one for the record books—the shortest gamma-ray burst […]