12 Scientists Powering the Biggest Breakthroughs of the Modern Era

As co-developer of CRISPR-Cas9 gene-editing technology, Doudna transformed molecular biology and medicine. The tool has revolutionized genetic research, enabled new therapies for inherited diseases, and sparked global ethical debates about gene editing. Her work earned a Nobel Prize in Chemistry in 2020.

Partnering with Jennifer Doudna, Charpentier helped uncover how CRISPR-Cas9 could be harnessed as a precise gene-editing tool. Her discoveries opened the door to targeted genome engineering across plants, animals, and humans, fundamentally altering biotechnology and medicine.

Karikó’s decades-long work on messenger RNA laid the foundation for mRNA vaccines, including the first COVID-19 vaccines. Her breakthroughs demonstrated how modified mRNA can safely instruct cells to produce protective proteins, transforming vaccine development and therapeutic research.

Working alongside Karikó, Weissman helped solve key challenges in stabilizing mRNA for medical use. Their combined research directly enabled rapid vaccine development during the COVID-19 pandemic and has accelerated mRNA-based treatments for cancer and infectious diseases.

A leading theoretical physicist, Thorne played a central role in the Laser Interferometer Gravitational-Wave Observatory (LIGO) project. The 2015 detection of gravitational waves confirmed a major prediction of Einstein’s general relativity and opened a new era of astronomy.

Strickland co-developed chirped pulse amplification, a technique that enables ultra-intense laser pulses. This innovation has applications ranging from precision eye surgery (LASIK) to advanced materials research and earned her a Nobel Prize in Physics in 2018.

As co-founder and CEO of DeepMind, Hassabis has driven advances in artificial intelligence, including AlphaGo and AlphaFold. AlphaFold’s accurate protein-structure predictions have accelerated biomedical research worldwide, demonstrating AI’s transformative scientific potential.

Pääbo founded the field of paleogenomics by sequencing the Neanderthal genome. His work revealed interbreeding between Neanderthals and modern humans, reshaping our understanding of human evolution and ancient migration patterns.

Arnold pioneered directed evolution, a method for engineering enzymes with new or improved functions. Her approach has revolutionized green chemistry, enabling more sustainable industrial processes and novel pharmaceutical development.

As a key leader of the ATLAS experiment at CERN and later Director-General of CERN, Gianotti helped guide the discovery of the Higgs boson in 2012. The finding confirmed a cornerstone of particle physics and deepened understanding of how particles acquire mass.

Tu’s discovery of artemisinin, derived from traditional Chinese medicine, revolutionized malaria treatment. Although her breakthrough began in the late 20th century, its global impact has been most strongly felt in the 21st century, saving millions of lives.

Inventor of the World Wide Web, Berners-Lee has remained a central figure in shaping the internet’s evolution. In the 21st century, his advocacy for open data, net neutrality, and decentralized web technologies continues to influence digital policy and infrastructure worldwide.