Two high school students and their mentor, MIT postdoc Tansu Daylan, have discovered four new exoplanets located about 200 light years from Earth, reports Nora McGreevy for Smithsonian. The students were participating in the Student Research Mentoring Program, which pairs young astronomers with scientists at MIT and Harvard. “[The students] are so good at finding things that may skip your eyes, basically. It’s fun. And I really like the exchange of ideas,” Daylan adds.
Astronomers have uncovered evidence of an extended dark matter halo around an ancient galaxy located about 163,000 light years from Earth, reports Isaac Schultz for Gizmodo. “We know [dark matter] is there because in order for galaxies to remain bound, there must be more matter than what we see visibly, from starlight,” explains graduate student Anirudh Chiti. “That led to the hypothesis of dark matter existing as an ingredient that holds galaxies together.”
UPI reporter Brooks Hays writes that MIT researchers have discovered an extended dark matter halo encircling an ancient dwarf galaxy about 163,000 light years from Earth. “The findings suggest many more of the cosmos' earliest galaxies may have formed within expansive dark matter halos,” writes Hays.
Mashable spotlights how two high school students, who were part of Student Research Mentoring Program (SRMP) at the Harvard-Smithsonian Center for Astrophysics (CfA) and MIT, have discovered four new exoplanets. “Both the students took guidance from mentor Tansu Daylan, a postdoc at the MIT Kavli Institute for Astrophysics and Space Research, and helped the students study and analyze data from the Transiting Exoplanet Survey Satellite (TESS).”
A team of astronomers, including MIT researchers, have identified fast radio burst emanating from a magnetar in our galaxy, reports Doyle Rice for USA Today. “The radio pulses are the closest ones detected to date, and their proximity has allowed the team to pinpoint their source.”
Prof. Kiyoshi Masui speaks with Verge reporter Loren Grush about how astronomers have detected fast radio bursts coming from a magnetar within our own galaxy. “This is the missing link,” Masui says. “Now we’ve seen a fast radio burst coming from a magnetar, so it proves that at least some fraction of fast radio bursts we see in the universe come from magnetars.”
Fox News reporter Chris Ciaccia writes that a team of astronomers, including MIT researchers, has found an exoplanet that has a 3.14-day orbit. “The ‘pi planet’ known as K2-315b is relatively close to Earth at 186 light-years away,” writes Ciaccia.
MIT researchers have discovered an Earth-sized planet, named K2-315b, which is being referred to as the “pi planet” for its 3.14 day orbit, reports Allison Gasparini for Forbes. “Having planets like K2-315b will help us to further understand the diverse planet bodies out there,” says graduate student Prajwal Niraula.
The Economist explores how the Transiting Exoplanet Survey Satellite (TESS), an MIT-led NASA mission, has identified a number of new exoplanets and, in the process, helped astronomers and scientists unearth new details about our universe. This latest discovery, according to The Economist, “will help answer some of the biggest questions in the rapidly growing science of exoplanetology.”
TESS, an MIT-led NASA mission, has discovered two gaseous exoplanets and one rocky exoplanet within a system known as TOI-270, reports New Scientist. “TOI-270 will soon allow us to study this ‘missing link’ between rocky Earth-like planets and gas-dominant mini-Neptunes, because here all of these types formed in the same system,” says postdoc Maximilian Günther, lead author of a paper on the new system.
The New York Times’ Dennis Overbye reports on a paper from MIT, which shows that NASA’s planet hunting satellite TESS has discovered three new exoplanets in a system 73 light-years from Earth known as TOI-270. “TOI-270 is a true Disneyland for exoplanet science because it offers something for every research area,” says postdoc and lead author Maximilian Günther. “It is an exceptional laboratory for not one, but many reasons.”
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.”
Space.com reporter Mike Wall writes that researchers have calculated a supermassive black hole’s rotation rate by analyzing the X-rays it emitted after consuming a nearby star. The researchers found that “the huge black hole, known as ASASSN-14li, is spinning at least 50 percent the speed of light.”
Gizmodo reporter Ryan Mandelbaum writes that researchers determined how fast a supermassive black hole spins by measuring a star being swallowed by the black hole. Postdoctoral fellow Dheeraj Pasham explains that, “this measurement is different in the sense that we were able to measure the spin of a black hole that was dormant.”
Prof. Sara Seager and her team are building a list of biosignatures - chemicals that could suggest the presence of life on other planets - in their search for extraterrestrial life, writes Joshua Sokol for New Scientist. Seager is “looking at all small molecules, not just the ones linked to life as we know it.”