Noteworthy achievements in science and research?

There’s no single ranking, but some scientific achievements stand out because they changed how we understand the world or improved lives on a large scale. A few examples:

• Germ theory and vaccination: Showing that microorganisms cause many diseases transformed medicine. Vaccination helped lead to the eradication of smallpox, declared in 1980.
• The DNA double-helix structure: Work published in 1953 revealed how genetic information is stored and copied, opening the way for modern genetics and biotechnology.
• Spaceflight and the Apollo 11 Moon landing: In 1969, humans walked on the Moon for the first time, a milestone built on decades of research in physics, engineering, and computing.
• The Higgs boson discovery: Announced in 2012, this particle supported a key part of the Standard Model of particle physics.
• Detection of gravitational waves: First announced in 2016 from signals recorded in 2015, the discovery gave scientists a new way to observe cosmic events.
• CRISPR gene editing and mRNA vaccines: CRISPR made targeted gene editing more accessible to researchers, while mRNA vaccines were developed and deployed at unprecedented speed during the COVID-19 pandemic.

These examples span different fields, but they share a common thread: a new idea or tool made questions possible that researchers previously could not answer.