AI Magazine November 2025 | Page 134

CREDIT: NASA
Training that once would have taken months or years could now be completed in days or weeks, dramatically accelerating the pace of climate science.
Listening to the universe: LIGO’ s gravitational wave detection While DeepSat looked down at Earth, another NASA collaboration with Nvidia was listening to the cosmos itself.
The Laser Interferometer Gravitational-wave Observatory( LIGO) faced a computational challenge that seemed almost impossible: detecting gravitational waves from colliding black holes millions of light-years away in real-time.
Einstein’ s general relativity predicted gravitational waves, but detecting them required identifying incredibly subtle patterns in extremely noisy data.
Traditional computational methods were too slow to enable the real-time analysis necessary for coordinating observations with other telescopes around the world.
In response, Daniel George and Eliu Huerta at the NCSA Gravity Group developed a solution using deep convolutional neural networks running on Nvidia Tesla GPUs. Their system could detect gravitational wave signals whose amplitude was significantly weaker than background noise and estimate the masses of colliding black holes with remarkable precision.
Dr Eliu Huerta, Head of the NCSA Gravity Group, explains the impact:“ Gravitational wave astrophysics is
134 November 2025