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Some 1.3 billion years ago, in a galaxy far, far away, two massive black holes collided violently, setting off ripples in the fabric of space-time. Tuesday, that legacy was etched in gold, as the Royal Swedish Academy of Sciences awarded LIGO architects Rainer Weiss, Kip Thorne, and Barry Barish the 2017 Nobel Prize in Physics for their work designing, building, and using LIGO.
These ripples, called gravitational waves, passed through Earth on Sept. And for the first time ever, humans detected the nearly imperceptible motion of gravitational waves. But these first four detections and the honor bestowed upon the scientists are just the beginning.
Every time matter moves around, gravitational waves are generated,” explains Lawrence Krauss, a theoretical physicist and cosmologist at Arizona State University.
Just as electromagnetic radiation can travel in a spectrum of wavelengths, so can these gravitational ripples.
Multi-messenger astronomy, as it is known, offers astronomers insights into cosmic events dating back to the beginning of the universe.
By combining data from electromagnetic radiation, gravitational waves, neutrinos, and cosmic rays, scientists can assemble detailed pictures of collisions of black holes, neutron stars, and other massive objects.“There is a possibility of learning a lot of what's going on about and around these sources,” Dr.
Police say two people have been arrested in the quadruple homicide that took the lives of two women and two children in their upstate New York apartment (left).
In view of the proliferation of increasingly fruitful exchanges between researchers of different stripes, it is no longer useful to speak of the philosophy of emotion in isolation from the approaches of other disciplines, particularly psychology, neurology, evolutionary biology, and even economics.
While it is quite impossible to do justice to those approaches here, some sidelong glances in their direction will aim to suggest their philosophical importance.
Campanelli says, “because now you have many independent means to extract information.”The spectacular fireworks of colliding neutron stars, for example, can currently be observed in electromagnetic wavelengths, so scientists know a bit about what they are made of, says Professor Teukolsky.
But how they work, the nuclear physics of neutron stars, has yet to be determined.