The science community primarily uses the International System of Units (SI), also known as the metric system.

Here's why:

* Universality: SI is the standard system used by most countries in the world, making it easy for scientists to collaborate and share results.

* Consistency: SI uses a base set of units and prefixes to represent all physical quantities, ensuring uniformity and eliminating confusion.

* Decimalization: SI uses a decimal system, making it easier to convert between units and perform calculations.

While the US still commonly uses the imperial system in daily life, the scientific community overwhelmingly relies on SI for its simplicity, precision, and global acceptance.