Woman writing scientific formulas on chalkboard
Science is the systematic study of the structure and behavior of nature, the universe and everything contained within. It organizes knowledge in the form of testable hypotheses and predictions, which are determined (and sometimes proven) through experimentation and observation. In addition to the academia associated with it, science can refer to the pursuit of this knowledge as well.
Scientific experiments have given rise to the scientific method— a set methodology of study that transcends all disciplines of science. With roots in classical philosophy, science has drastically changed our knowledge and understanding of the universe. Consequently, science has also given rise to countless advancements in technology.
There are several categories of science, each with its own set of scientific branches that in turn include a multitude of different disciplines and sub-branches. For example, biogeography is a discipline within ecology, which in turn is a branch of biology. Measurement and mathematics — a science in itself — play important roles across the sciences.  (Photo: Shutterstock)

Scientists detect more repeating radio signals from deep space

10 surprising facts about Neanderthals

You and a ginkgo tree can help scientists study climate change

What is C. difficile?

Scientists baffled by sudden brightness of our galaxy's supermassive black hole

Yes, your cat really is ignoring you

7 superhuman senses

Scientists find vast, ancient galaxies hiding in plain sight

A new food made from carbon dioxide could be a game changer for our planet — and beyond

A rare star escapes the supermassive black hole at the heart of the galaxy