# mSphere of Influence: The power of observational research

## TL;DR

A cell biologist reflects on how observing cells through microscopy, inspired by a classic study on Listeria, has shaped her scientific approach.

## Contribution

Highlights the enduring value of observational research in shaping scientific understanding and personal methodology.

## Key findings

- Observational studies can reveal deep biological insights.
- Microscopy remains a powerful tool for understanding cellular processes.
- Classic research can inspire new generations of scientists.

## Abstract

Katrina Velle is a cell biologist who uses microscopy to study amoebae. In this mSphere of Influence article, she reflects on how a classic paper on Listeria by Tilney and Portnoy made an impact on her by highlighting how much we can learn from simply looking at cells.