Geothermal energy, a long-underutilized resource, is now at the forefront of revolutionizing data centers for a sustainable future. With advanced drilling technologies and innovative resource management, geothermal power plants are becoming a crucial part of future energy systems, particularly for data centers facing a sharp rise in electricity use. Unlike traditional energy sources, geothermal plants operate at over 90% capacity, offering a stable power supply with minimal emissions and pollution. By harnessing Earth's heat, geothermal energy emits significantly less sulfur and carbon dioxide than fossil fuels, contributing to a low-carbon future. Enhanced Geothermal Systems (EGS) present a groundbreaking solution by tapping into deep rock layers, expanding geothermal's potential beyond Western states. EGS could potentially supply a significant portion of data center energy needs by the early 2030s, reducing greenhouse gas emissions. Additionally, geothermal's direct cooling methods using heat pumps and absorption chillers efficiently manage data center temperatures, offering a sustainable alternative to traditional cooling systems. The future of geothermal power looks promising, with predictions indicating substantial growth in its U.S. generating capacity by 2050. Despite challenges like high upfront costs, investments from major tech companies like Alphabet and Meta signal a shift towards embracing geothermal energy. With ongoing innovation and policy support, geothermal energy is poised to transform data center power and cooling, driving the industry towards sustainability in the face of rising energy demands.