15 Scientists Shaping the 21st Century Through Breakthrough Discovery

As co-developer of CRISPR-Cas9 gene editing, Jennifer Doudna fundamentally changed modern biology. The 2020 Nobel Prize winner helped create a tool that allows precise, affordable DNA editing, accelerating treatments for genetic diseases and transforming biotechnology research worldwide.

Working alongside Doudna, Charpentier co-developed CRISPR-Cas9 and co-received the 2020 Nobel Prize in Chemistry. Her work has opened the door to gene therapies, agricultural innovation, and new biomedical research models at unprecedented speed.

Karikó’s decades-long research into modified mRNA made possible the rapid development of COVID-19 vaccines. Awarded the 2023 Nobel Prize in Physiology or Medicine, her work has launched a new era of mRNA-based vaccines and therapeutics.

Co-recipient of the 2023 Nobel Prize with Karikó, Weissman helped solve the inflammatory challenges of mRNA delivery. His breakthroughs enabled the safe and effective mRNA vaccines that played a central role in combating the global pandemic.

As co-founder and CEO of DeepMind, Hassabis has driven AI breakthroughs including AlphaGo and AlphaFold. AlphaFold’s ability to predict protein structures has revolutionized biology, accelerating drug discovery and structural research worldwide.

A leading figure in artificial intelligence, Fei-Fei Li co-created ImageNet, a dataset that catalyzed the deep learning revolution. Her work has shaped computer vision, AI ethics, and human-centered AI development across academia and industry.

Thorne’s theoretical work on gravitational waves culminated in their 2015 detection by LIGO, earning him a share of the 2017 Nobel Prize in Physics. This confirmation of Einstein’s prediction opened a new era of gravitational-wave astronomy.

Co-winner of the 2018 Nobel Prize in Physics, Strickland helped develop chirped pulse amplification, a method for generating ultra-intense laser pulses. Her work has applications in precision manufacturing, eye surgery, and high-field physics.

Pääbo founded the field of paleogenomics and led the sequencing of the Neanderthal genome. Awarded the 2022 Nobel Prize in Physiology or Medicine, his discoveries reshaped our understanding of human evolution and ancient interbreeding.

Allison’s pioneering work on immune checkpoint therapy transformed cancer treatment. His research on CTLA-4 inhibition, recognized with the 2018 Nobel Prize in Physiology or Medicine, helped establish modern cancer immunotherapy.

Although her discovery of artemisinin began in the 20th century, its global impact has been most profoundly felt in the 21st. Awarded the 2015 Nobel Prize, her work has saved millions of lives by revolutionizing malaria treatment.

Inventor of the World Wide Web, Berners-Lee has remained influential through his advocacy for an open, decentralized internet. In the 21st century, his work on web standards and data privacy continues to shape the digital world.

Arnold won the 2018 Nobel Prize in Chemistry for pioneering directed evolution of enzymes. Her methods enable the development of environmentally friendly chemicals, pharmaceuticals, and sustainable fuels.

As a key leader behind DeepMind’s AlphaFold, Jumper helped solve one of biology’s grand challenges: predicting protein structures from amino acid sequences. The breakthrough has provided open-access structural data for hundreds of millions of proteins.

A leading climate scientist, Hayhoe combines rigorous atmospheric research with public communication. Her work has influenced climate policy discussions and improved public understanding of climate risks and solutions.