A new study co-authored by MIT researchers presents the first evidence that a distant planet had its atmosphere partially blown away by a large impact, reports Charles Choi for Space.com. "I think a really critical implication is that the gas that is released in the aftermath of a giant impact can last for a long time, and it can affect the way the system evolves long-term," explains graduate student and lead author Tajana Schneiderman.
NPR’s Nell Greenfieldboyce spotlights how LIGO has helped to usher in a “big astronomy revolution” that is allowing scientists to listen to the universe. “The exciting thing is when you've got a new instrument, you know, a brand-new way of looking at things,” says Greenfieldboyce, “you don't know what you might detect that you never even thought of because until now, you just weren't able to look at the universe in this way.”
Researchers from MIT and other institutions have been able to observationally confirm one of Stephen Hawking’s theorems about black holes, measuring gravitational waves before and after a black hole merger to provide evidence that a black hole’s event horizon can never shrink, reports Caroline Delbert for Popular Mechanics. “This cool analysis doesn't just show an example of Hawking's theorem that underpins one of the central laws affecting black holes,” writes Delbert, “it shows how analyzing gravitational wave patterns can bear out statistical findings.”
Prof. Nergis Mavalvala, Dean of the School of Science, speaks with Becky Ferreira of Motherboard’s “Space Show” about LIGO’s 2015 discovery of gravitational waves and what researchers in the field have learned since then. “Every one of these observations tells us a little bit more about how nature has assembled our universe,” says Mavalvala. “Really, in the end, the question we're asking is: ‘How did this universe that we observe come about?”
CNN reporter Ashley Strickland writes about how researchers from the CHIME collaboration have announced that they have detected over 500 fast radio bursts (FRBs) using a radio telescope in Canada. "With all these sources, we can really start getting a picture of what FRBs look like as a whole, what astrophysics might be driving these events, and how they can be used to study the universe going forward," explains graduate student Kaitlyn Shin.
Scientists from the CHIME Collaboration, including MIT researchers, have reported that the radio telescope has detected more than 500 fast radio bursts in its first year of operation, reports Davide Castelvecchi for Nature. The findings suggest that these events come in two distinct types. “I think this really just nails it that there is a difference,” says Prof. Kiyoshi Masui.
The CHIME radio telescope has catalogues more than 500 fast radio bursts (FRBs), which could be used to help map the universe, reports Charlie McKenna for The Boston Globe. FRBs are “kind of like lighthouses or sonar pings,” explains graduate student Calvin Leung, “and for the very first time we’ve shown that we can detect them in large enough quantities that you can really use them to make statements like, ‘Oh, the universe is expanding at this rate,’ or ‘This is how much matter there is in the whole universe.’”
Inverse reporter Passant Rabie explores how the CHIME radio telescope has identified more than 500 fast radio bursts in its first year of operation, providing clues as to the structure of the universe. “With enough of them, they are going to be the ultimate tool for mapping the universe,” says Prof. Kiyoshi Masui.
Brother Guy Consolmagno ’74, director of the Vatican Observatory, speaks with Sylvia Poggioli of NPR about his desire to promote a greater dialogue between faith and science. "Because people can see science in action, science doesn't have all the answers," says Consolmagno. "And yet science is still with all of its mistakes and with all of its stumbling is still better than no science."
Axios reporter Miriam Kramer writes that a new study co-authored by MIT researchers suggests that all black holes go through a similar cycle when feeding, whether they are big or small. “Black holes are some of the most extreme objects found in our universe,” writes Kramer. “By studying the way they grow, scientists should be able to piece together more about how they work.”
Boston Globe reporter Charlie McKenna writes that a new study co-authored by MIT researchers finds that the way black holes evolve as they consume material is the same, no matter their size. “What we’re demonstrating is, if you look at the properties of a supermassive black hole in the cycle, those properties are very much like a stellar-mass black hole,” says research scientist Dheeraj “DJ” Pasham. The findings mean “black holes are simple, and elegant in a sense.”
Academic Times reporter Monisha Ravisetti writes that a new study by physicists from a number of institutions, including MIT, finds that supermassive black holes devour gas just like their smaller counterparts. “This is demonstrating that, essentially, all black holes behave the same way,” says research scientist Dheeraj “DJ” Pasham. “It doesn’t matter if it’s a 10 solar mass black hole or a 50 million solar mass black hole – they appear to be acting the same way when you throw a ball of gas at it.”
New Scientist reporter Leah Crane writes that researchers from the LIGO and Virgo gravitational wave observatories have potentially detected primordial black holes that formed in the early days of the universe. “When I started this, I was expecting that we would not find any significant level of support for primordial black holes, and instead I got surprised,” says Prof. Salvatore Vitale.
Boston Globe reporter Charlie McKenna writes that MIT researchers have used the spin of black holes detected by the LIGO and Virgo detectors to search for dark matter. "In reality, there is a much broader set of theories that predict or relies on the existence of these very ultra-light particles,” says Prof. Salvatore Vitale. “One is dark matter. So they could be dark matter. But they could also solve other open problems in particle physics.”
A new study by MIT researches finds that some masses of boson particles don’t actually exist, reports Monisha Ravisetti for The Academic Times. “[Bosons] could be dark matter particles, or they could be something that people call axions, which are proposed particles that could solve problems with the magnetic bipoles of particles,” says Prof. Salvatore Vitale. “Because they can be any of these things, that means they could also have an incredibly broad range of masses.”