A false-colored scanning electron microscope image of a sourdough starter shows starch grains (green), yeast (red) and bacteria (blue). Daniel Veghte, CC BY-SA ...

This technique allows samples to be frozen at -200°C to trap membranes in their native state, which can then be observed under an electron microscope.

Scientists are conducting a long-term experiment on evolution to investigate how single-celled organisms could evolve into multicellular lifeforms. After thousands of generations, their yeast grew ...

While the original electron microscope arrived in the early 1930’s (there’s still a controversy to this day over who invented the very first one), scientists have relied on what are known as ...

Giving rise to the starter is the yeast, colored red. As the yeast grows, it ferments sugars from the starch grains and releases carbon dioxide bubbles and alcohol as byproducts that make the ...