Gizmodo reporter Ryan Mandelbaum explores the five potential gravitational wave detections made by the LIGO and Virgo observatories in the last month. Prof. Salvatore Vitale explained that the possible detection of a black hole colliding with a neutron star could provide scientists with a better way to measure how quickly the universe is expanding.
“LIGO/VIRGO has opened up its notification process to the public,” explains Ars Technica reporter John Zimmer. “In short, anyone who’s interested can find out what LIGO is seeing within a day of when the LIGO scientists themselves do.”
The LIGO and Virgo gravitational wave detectors have identified five new cosmic events since resuming operations last month, reports Sarah Lewin for Space.com. “The most exciting thing of the beginning of O3 [this third observation round] is that it's clear we are going from one event every few months to a few events every month," explains Prof. Salvatore Vitale.
Writing for Quanta Magazine, David Freedman spotlights Prof. Pablo Jarillo-Herrero’s discovery that when twisted to a “magic” angle, graphene can act as a semiconductor. Freedman writes that the “discovery has given scientists a relatively simple platform for exploring exotic quantum effects.”
Inside Science reporter Yuen Yiu writes that MIT researchers have developed a new AI system that can summarize scientific research papers filled with technical terms. Yiu writes that the system “is a dramatic improvement from current programs, and could help scientists or science writers sift through large numbers of papers for the ones that catch their interest.”
Prof. Frank Wilczek writes for The Wall Street Journal about how the first image of a black hole could help scientists gain a better understanding of how galaxies form and evolve. “To a thinking mind, the image reflects the glory of understanding, and to an alert imagination it opens new portals into space, time and deep history,” writes Wilczek.
Boston Globe reporter Martin Finucane writes about how TESS has discovered an Earth-sized planet orbiting a star 52 light years from Earth. “The new planet HD, 21749c, orbits the star HD 21749. It circles the star in 7.8 days,” Finucane explains. “The planet is probably rocky and uninhabitable, with temperatures on the surface of up to 800 degrees.”
Forbes contributor Jamie Carter writes that TESS has identified an Earth-sized exoplanet orbiting a star 52 light years from Earth. The planet "takes about eight days to orbit the host star and is similar in size to Earth at 89% its diameter,” writes Carter. “A likely rocky world, it's thought to have surface temperatures as high as 800°F /427°C.”
The MIT-led TESS mission has discovered its first Earth-sized exoplanet, reports Ashley Strickland for CNN. “There was quite some detective work involved, and the right people were there at the right time,” says postdoctoral fellow Diana Dragomir. “But we were lucky, and we caught the signals, and they were really clear."
Writing for WBUR, Prof. Marcia Bartusiak examines the significance of astronomers capturing the first image of a black hole, and how information gathered from studying black holes could provide insights into the origins of our universe. “Continued efforts like the Event Horizon Telescope project will provide astronomy’s next steps in separating fantasy from reality,” writes Bartusiak.
Prof. Pablo Jarillo-Herrero speaks with Gizmodo reporter Ryan Mandelbaum about his work showing that when twisted to the right angle, graphene can serve as an insulator or semiconductor. “This sort of field of ‘twistronics’ is something with great potential in terms of scientific discovery and intellectual interest,” Jarillo-Herrero explains.
Prof. Nergis Mavalvala speaks with NPR’s Nell Greenfieldboyce about recent upgrades made to the LIGO gravitational wave detectors, which should increase their ability to sense previously undiscovered cosmic events. "That's how discovery happens," explains Mavalvala. "You turn on a new instrument, you point it out at the sky, and you see something that you had no idea existed."
Financial Times reporter Clive Cookson writes that researchers from MIT and Penn State have developed a technique to make clear droplets produce iridescent colors. Cookson explains that the phenomenon is a previously unknown example of ‘structural color,’ produced not by pigments but the internal reflections of light within the tiny droplets.”
Prof. Nergis Mavalvala speaks with Ira Flatow of Science Friday about how she and her colleagues are working on a new technology called squeezed light, which could enable LIGO to see even more of the cosmos. Mavalvala explains that squeezed light is “a somewhat exotic quantum state of light that we engineer in our labs to improve the sensitivity of LIGO.”
Postdoctoral fellow Dheeraj Pasham speaks with Ira Flatow of Science Friday about his research calculating that a supermassive black hole 300 million light years from Earth is spinning at half the speed of light. Pasham explains that a black hole's spin rate provides information about the “channel through which it grew, all the way from a couple of years after the Big Bang until now.”