Astronomy and astrophysics

“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.

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."

Don Sousa, who coordinates shipments for the MIT Haystack Observatory, speaks with Atlantic reporter Marina Koren about the complex process of shipping petabytes of data from telescopes around the world to compile the first image of a black hole. Koren writes that for Sousa, “the photo is the culmination of years’ worth of effort by astronomers and shipping experts alike.”

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.

Postdoctoral fellow Kazunori Akiyama speaks with Science News reporter Emily Conover about his work translating the data compiled from eight observatories around the world into the first image of a black hole. “I was really happy, really excited,” says Akiyama of his emotions after seeing the first rendering of a black hole.  

Haystack research scientist speaks with Lowell Sun reporter Alana Melanson about how scientists at the Haystack Observatory made key contributions to creating the first-ever image of a black hole. “It's enormous volumes of data coming at you very, very fast -- much faster than you can record on a single hard drive,” says Fish of the vast quantities of data processed at Haystack to develop the image.

WCVB-TV’s Rhondella Richardson visits the MIT Haystack Observatory to learn more about how researchers there helped process the data that was compiled to produce the first image of a black hole. “It really does look exactly like what we expected it to, based on Einstein’s model of relativity,” explains Michael Hecht, Haystack’s associate director for research management. “There’s still a sense of awe.”

Science News reporter Maria Temming speaks with researchers from the Event Horizon Telescope about their work capturing the first picture of a black hole. Describing how the image was captured, Haystack research scientist Vincent Fish explains that the team was able to “reconstruct images, even though we don’t have 100 percent of the information, is because we know what images look like” in general.  

Haystack postdoc Kazunori Akiyama speaks with Gizmodo reporter Ryan Mandelbaum about the effort to capture the first image of a black hole, and notes that in the future, additional observations should shed light on how the region around the black hole is changing. “By accumulating observations over the next year with additional telescopes, we can identify what’s changing the black hole image,” Akiyama explains.

Fortune reporter Chris Morris explores how the Event Horizon Telescope has captured the first image of a black hole. “We’ve demonstrated that the EHT is the observatory to see a black hole on an event horizon scale,” says Haystack postdoc Kazunori Akiyama. “This is the dawn of a new era of black hole astrophysics.”

WBZ-TV’s Ken MacLeod visits MIT’s Haystack Observatory to learn about how scientists there processed enormous quantities of data to develop the first image of a black hole. “My goodness, we just proved that Einstein was right at a scale that no one has dreamed of,” says Haystack’s Michael Hecht. “Most of us still don’t believe it’s possible, even though we have done it.”