awarehorizon // methods

How Do We Know?

Space science is often the science of indirect evidence. We observe signals — then use physics to understand what produced them.

Transit Method

Detecting a planet when it passes in front of its star.

Detecting the tiny motion a planet causes in its star.

Reading light to investigate composition, temperature and atmospheres.

Measuring enormous distances using the travel time of light.

Using magnetic-field measurements to investigate hidden structures and materials.

Studying heat and wavelengths our eyes cannot see.

archive status6 methods published