Black holes

Science News reporter James Riordon writes that by employing a new technology called frequency-dependent squeezing, LIGO detectors should now be able to identify about 60 more mergers between massive objects like black holes and neutron stars than before the upgrade. Senior research scientist Lisa Barsotti, who oversaw the development of this new technology, notes that even next-generation gravitational wave detectors will be able to benefit from quantum squeezing. “The beauty is you can do both. You can push the limit of what is possible from the technology of laser power and mirror [design],” Barsotti explains, “and then do squeezing on top of that.”

MIT researchers Lisa Barsotti, Deep Chatterjee and Victoria Xu speak with Curiosity Stream about how developments in gravitational wave detection are enabling a better understanding of the universe. Barsotti notes that in the future, gravitational wave science should help enable us to, “learn more about dark matter about primordial black holds to try to solve some of the biggest mysteries in our universe.” Xu notes, “the detection of gravitational waves is a completely new window that has opened into our universe.”

Prof. Nergis Mavalvala, dean of the MIT School of Science, and postdoc Victoria Xu speak with Nature reporter Davide Castelvecchi about the upgrades to the LIGO gravitational wave detectors that have significantly increased their sensitivity. “The improvements should allow the facility to pick up signals of colliding black holes every two to three days, compared with once a week or so during its previous run." 

Upgrades made to the LIGO gravitational wave detectors “will significantly boost the sensitivity of LIGO and should allow the facility to observe more-distant objects that produce smaller ripples in spacetime,” writes Pennsylvania State University Prof. Chad Hanna in a piece for The Conversation.

New York Times reporter Dennis Overbye spotlights how scientists have captured a new image of the black hole at the center of the Messier 87 galaxy, bringing visibility to the “cooler outer regions of the black hole’s fiery accretion disk.” Research Scientist Kazunori Akiyama explained, “I’m really excited to see this result, because now we have a new tool to capture what is surrounding the famous E.H.T.’s black hole. We will be able to film how the matter falls into a black hole and eventually manages to escape.”

Scientists have captured a new image of M87*, the black hole at the center of the Messier 87 galaxy, showing the “launching point of a colossal jet of high-energy particles shooting outward into space,” reports Will Dunham for Reuters. "This is what astronomers and astrophysicists have been wanting to see for more than half a century," explains Research Scientist Kazunori Akiyama. "This is the dawn of an exciting new era."

A team of researchers have produced a new image of the black hole at the center of galaxy Messier 87, reports Isaac Schultz for Gizmodo. “The new image shows a larger ring of accreted material than the first images of the black hole indicated. At the center of the ring is the black hole—or its ‘shadow,’ as scientists say, because the black hole itself cannot be imaged,” writes Schultz.

An international team of astronomers, including MIT scientists, have captured new images of  black hole in a nearby galaxy, reports Jon Kelvey for Popular Science. “Going forward, astronomers plan to observe the black hole at other wavelengths to highlight different parts and layers of its structure, and better understand how such cosmic behemoths form at the hearts of galaxies and contribute to galactic evolution,” writes Kelvey.

Research Scientist Kazunori Akiyama speaks with Guardian reporter Hannah Delvin about the first image of a jet being launched from edge of black hole. “This is the first image where we are able to pin down where the ring is, relative to the powerful jet escaping out of the central black hole,” says Akiyama. ““Now we can start to address questions such as how particles are accelerated and heated, and many other mysteries around the black hole, more deeply.”

CNN’s Ashley Strickland highlights a study by MIT researchers finding that a mysterious flash of light was caused by a black hole jet pointing directly at Earth. The researchers determined that the flash of light was “100 times more powerful than the most powerful gamma-ray burst afterglow,” explains research scientist Dheeraj “DJ” Pasham.

Astronomers from MIT and other institutions have found that the source of a big flash of light observed in February 2021 was a black hole jet pointing directly towards Earth, reports Will Dunham for Reuters. "At its peak, the source appeared brighter than 1,000 trillion suns," explains research scientist Dheeraj “DJ” Pasham.

Boston Globe reporter Travis Andersen writes that researchers from MIT and other institutions have found that a huge bright flash in the sky initially observed earlier this year was a black hole jet pointing straight towards Earth. “Researchers believe the jet is a product of a black hole that suddenly began consuming a nearby star, releasing a large amount of energy in the process,” writes Andersen. “The flash was detected at some 8.5 billion lights years away, or more than halfway across the universe.”

A mysterious bright light detected in February has been identified as a black hole consuming a nearby star by researchers at MIT and elsewhere, reports Isaac Schultz for Gizmodo. “This particular event was 100 times more powerful than the most powerful gamma-ray burst afterglow,” says research scientist Dheeraj “DJ” Pasham. “It was something extraordinary.”

Researchers from MIT and elsewhere have found that the source of a mysterious flash of light was a black hole jet pointed at Earth, reports Aristos Georgiou for Newsweek. “The study suggests that the jet was produced when this distant black hole began devouring a nearby star that had strayed too close,” writes Georgiou. “As the black hole fed on the material of the star, it ejected a stream of particles traveling at close to the speed of light in the form of a jet, which appears to be pointed directly at our planet.”

Researchers at MIT co-authored a study which found that two stars in a binary system 3,000 light years from Earth are orbiting each other so closely that one of the stars has burnt out, reports Will Dunham for Reuters. "Basically, they were bound together for 8 billion years in a binary orbit,” says postdoc Kevin Burdge, “And now, right before the second one could end its stellar life cycle and become a white dwarf in the way that stars normally do - by evolving into a type of star called a red giant - the leftover white dwarf remnant of the first star interrupted the end of the companion's lifecycle and started slowly consuming it."