Minutes after learning about the discovery, Shane Larson scribbled calculations in a notebook to try to figure out if a similar black hole system might be visible to other gravitational wave detectors. These exceptional sites, including their natural components, can be considered as “landscapes of science and knowledge”. The Starlight Initiative is designed as an international action in defence of the values associated with the night sky and the general right to observe the stars. U.S. Laser Interferometer Gravitational-Wave Observatory, Center for Interdisciplinary Exploration and Research in Astrophysics. Until last September, a pair of black holes had only been studied in theory and on computers. But black holes do radiate gravitational waves, which are produced by accelerating masses. The next step was for the LIGO collaboration leadership to run through its checklist of more than 100 items to analyze the data from the observatories and do multiple simulations, reviews and months of additional checking — to confirm the discovery of the monster signal. Laser physicist Dave Reitze ’83, executive director of the Laser Interferometer Gravitational-Wave Observatory at the California Institute of Technology in Pasadena. Gravitational waves allow us to look at the strongest gravity environments that are unreachable in any lab.”, “This is a new kind of astronomy — observing the universe using gravity itself,” adds Larson. “Gravitational waves were something that Einstein predicted 100 years ago. The team’s contributions to the Sept. 14 discovery include making predictions for anticipated detections, interpreting the astrophysics, analyzing the data and characterizing the detectors. So there’s a whole lot of discovery space out there. So we’re used to keeping professional secrets.”. Up until now almost everything we know about the universe has come from electromagnetic waves — light we can see — such as X-rays, gamma rays and radio waves, says Kalogera, who is one of LIGO’s most senior astrophysicists. With the potential for even greater detection on the immediate horizon, it’s a heady time for scientists who study the cosmos. Starlight Foundation- Spain. “It’s so cool that we can make devices that are capable of measuring these tiny, tiny effects that come from these massive cataclysmic collisions of black holes. “That’s part of the work I was doing early in the astrophysics, trying to model what happens to black holes when they form and exploring whether they become LIGO sources. Photo courtesy of the California Institute of Technology. “We debated whether we were going to cancel the press conference.”. “We were overwhelmed by the media attention,” says Reitze. By the time the U.S. West Coast woke up, emails were flying around the world as a small group of scientists in the LIGO Scientific Collaboration wondered if this was real or a test. He knew that there was something very important going on with LIGO. It was predicted in the ’60s, they searched for it for a long time. They’re also making improvements to the sensitivity of the LIGO detectors. “My husband is the lead scientific editor of the Astrophysical Journal Letters, in which we eventually published one of the LIGO papers, the one that discussed the astrophysical implications of the discovery. “I remember thinking there’s something weird going on at LIGO,” recalls Kalogera, an expert in black hole formation in binary systems and LIGO data analysis as well as director of Northwestern’s Center for Interdisciplinary Exploration and Research in Astrophysics.

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