Science magazine selects the top scientific advances of 2025; solar energy tops the list, reinforcing the potential of renewable energies.

Solar energy is highlighted as the biggest scientific breakthrough of 2025, according to Science magazine, in a year marked by discoveries in renewables, AI, medicine and genetics.

The accelerated growth of solar energy placed renewable energy sources at the center of the global scientific debate in 2025. According to magazine ScienceFor the first time in history, global electricity generation from solar and wind power surpassed coal-based production. This achievement was hailed as the year’s most significant scientific breakthrough, signaling a structural shift in the international energy system.

Symbolically, the editorial that opened the annual ranking was titled “Good morning, sunshine.” The publication highlighted that, between January and June, the expansion of solar and wind energy was sufficient to meet all the growth in global electricity demand. As a result, dependence on fossil fuels began to decline consistently.

Energy transition accelerates and approaches peak carbon.

According to Holden Thorp, editor-in-chief of ScienceThe planet has entered a decisive phase on the road to what is known as “peak carbon.” This concept represents the moment when global emissions reach their maximum level before beginning a downward trajectory.

In that scenario, the solar energy China is taking on a strategic role. After years of subsidies and industrial-scale investments, the country has consolidated its dominance over the renewable technology supply chain, from photovoltaic panels to storage systems, influencing prices and accelerating global adoption.

Meanwhile, other economies are advancing gradually. Even so, the combined progress indicates that the energy transition has ceased to be just a promise and has become a measurable phenomenon.

Medical advances expand the frontiers of applied science.

In addition to renewables, 2025 was also marked by significant progress in medicine. One of the highlights was the unprecedented application of personalized gene editing in a baby in the United States, identified as KJ, diagnosed with the rare disease CPS1. The technique opened new possibilities for treatments of ultra-rare conditions, although experts warn of high costs and safety challenges.

At the same time, clinical trials have advanced in the fight against gonorrhea. Two new drugs have reached the testing phase, representing the first therapeutic innovation against the disease in decades. The potential impact is significant, considering that more than 80 million people are affected annually.

In oncology, researchers have discovered how tumors can manipulate nerve cells to receive mitochondria, a process that promotes the spread of cancer. This finding may guide new treatment strategies.

Artificial intelligence reaches an advanced academic level.

Artificial intelligence has consolidated its presence in the rankings of ScienceLarge language models have demonstrated performance comparable to that of researchers with doctorates in different scientific fields.

DeepMind’s Gemini model won a gold medal at the International Mathematical Olympiad. Meanwhile, OpenAI’s GPT-5 solved complex problems in combinatorics and graph theory that have challenged experts for decades. These results reinforce the role of AI as a scientific tool, not just a technological one.

Discoveries about human origins and new medical horizons.

In the field of paleoanthropology, genetic analysis of the Harbin skull confirmed its Denisovan origin, with an estimated age of 146 years. The finding broadened our understanding of hominid diversity and their interactions with modern humans.

Meanwhile, xenotransplantation has reached a new milestone. A genetically modified pig kidney, with 69 altered genes, functioned for almost nine months in a human patient. The result reinforces the technique’s potential to address the organ shortage.

Agricultural science and astronomy are also advancing.

The 2025 list also included a significant advance in agriculture. Chinese researchers identified a gene in rice capable of protecting the grain against the effects of nighttime heat. This discovery could increase agricultural productivity in the context of climate change.

In astronomy, the inauguration of the Vera Rubin Observatory in Chile marked the beginning of a new era of observing the universe. Equipped with the largest digital camera ever built, the telescope promises to expand our understanding of dark matter, galaxies, and extreme cosmic phenomena.

Solar energy symbolizes the convergence between science and society.

The ranking of Science This shows that 2025 was a year of convergence between science, technology, and social impact. Within this context, the solar energy It stands out not only as a technical innovation, but as a driver of economic, environmental, and geopolitical transformation. Science, once again, has demonstrated its capacity to offer concrete answers to the challenges of the present and to shape paths for the future.