Caltech Astro
The detection of gravitational waves from merging black holes by LIGO changed astronomy forever–find out how. Lecture: 04:08; Lecture Q&A: 45:10; How lunar eclipses work: 48:18; Panel Q&A: 57:40
Date: January 20, 2019
Lecturer: Dr. Jameson Rollins
Title: The Dawn of the Age of Gravitational-Wave and Multi-Messenger Astronomy
Abstract: The world-wide network of gravitational wave detectors led by LIGO has now observed 11 astrophysical gravitational-wave events: ten from merging black holes and one from the merger of two neutron stars. The neutron star merger was of particular interest since it was followed up with traditional astronomical observations by almost every telescope on the planet. This event heralded the true beginning of the age of multi-messenger astronomy, where scientists observe an astronomical event by two distinct physical “messengers”, in this case gravitational waves and light. This talk will recap these discoveries and forecast some of the exciting things that await us in this new age of astronomy.
This event coincided with the Total Lunar Eclipse of January 2019 and features a brief discussion of why eclipses occur.
Event Photos: https://www.flickr.com/photos/143414768@N07/albums/72157703530422522
Echo360 Two-Pane Video Stream: https://echo360.org/section/df8345ec-7d0c-4dc3-b450-65a423c24650/public
Thumbnail Image Credit: Dana Berry / Skyworks Digital, Inc.
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I just want to say that I really appreciate the patience the panel must have to listen to questions from the crowd that were already answered in the lecture.
The animal kingdom is full of animals being attracted to their prey using sight and smell and auditory senses. sharks can smell blood at one ppm…which attracts them to their prey at a great distance. Why not the following: A mass senses another mass at a great distance via EM radiation and thus are attracted to each other….Then Just as a shark swims towards it's prey, each mass "swims" toward each other (by bending their own local space?)
Let the sun shine in ?
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