Listening for Bumps in the Night:
Discovering Gravitational Waves
Research physicist Keith Thorne presented “Listening for Bumps in the Night: Discovering Gravitational Waves” as part of the Martz-Kohl Observatory’s lecture series. He invited the audience to imagine the universe as a vast, silent ocean where violent events—such as the collision of massive black holes—send invisible “shudders” through the very fabric of space-time. The lecture detailed how the Laser Interferometer Gravitational-wave Observatory (LIGO) captures these faint whispers from the deep cosmos using colossal laser detectors in Washington and Louisiana, instruments so sensitive they can detect movements smaller than the width of an atom.
Thorne traced the decade of technological refinement that culminated in the historic 2015 detection of a collision occurring 1.3 billion light-years away, fundamentally shifting how we explore the universe’s deepest mysteries. The session broke down the sophisticated engineering behind these observatories, bridging the gap between theoretical physics and applied detection technology. Following the formal presentation, an engaging Q&A session addressed audience inquiries ranging from the intricacies of gravitational-wave data processing and real-time computing systems to the broader implications of these astronomical breakthroughs.
Thorne’s background includes a doctorate from Fermilab and a dedicated career with the LIGO collaboration beginning in 2003. As a leader of the real-time controls and computing groups at the Livingston, Louisiana observatory, his technical guidance was instrumental in the first-ever detection of gravitational waves and the critical system upgrades that followed through 2024. Now retired in Wellsboro, PA, Thorne remains involved with the astronomical community as he currently focuses his expertise on asteroid occultation observations.
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