Photo by: Wikimedia Commons

Wikimedia Commons

Alexander Fleming's Accidental Discovery Of Penicillin

By: Ashley Hamer

His poor cleaning habit leads to an amazing moment.

August 01, 2019

Alexander Fleming, a professor of Bacteriology at St. Mary's Hospital in London, didn't do a great job of cleaning his laboratory before heading out on vacation in 1928. When Fleming came back, he began cleaning the petri dishes on which he was experimenting with bacteria. On one dish, however, he found a mold growth. In the area around the mold growth, there was no bacteria. There was bacteria in other parts of the petri dish, but the mold was sitting in an area alone. Fleming had a "eureka!" moment, as he had just accidentally discovered an antibiotic. Learn more about his world-changing discovery with the videos below.

This article first appeared on Curiosity.com.

Next Up

How to Save Humanity from Extinction

Here are some goals we need to achieve if we want to reach our 500,000th birthday as a species.

Quiz: Test Your Space Exploration Knowledge

Ahead of the historic May 27th NASA and SpaceX crewed space launch, test your space exploration knowledge!

Extreme Weather Tests the Durability of Solar and Wind Power

As category four Hurricane Ian swept across the Caribbean into south west Florida on 28 September 2022, knocking out Cuba’s electricity grid along the way, hundreds of thousands of homes were hit by flooding and power loss. In contrast, the solar-powered community of Babcock Ranch 24 miles to the north of coastal town Fort Myers survived intact.

World's First Malaria Vaccine Offers Hope to Millions

Tens of thousands of lives could be saved each year from sickness and death caused by malaria following the World Health Organization (WHO) approval of a first-ever vaccine. Scientists have recommended the RTS,S vaccine for children in sub-Saharan Africa and other high-risk areas to prevent one of the world’s oldest and deadliest infectious diseases.

May Sky Watch: What to Look Out For This Month

Whether you can see it from home or stream it online, here are some of May's wonderous celestial events.

4 Reasons Why Earth is the Best Planet to Call Home

Since 1970, folks from around the world have gathered together to celebrate Earth Day, an appreciation for all the good stuff we’ve got here on the Earth – and a reminder to try not to mess it up. But what’s so special about the Earth, anyway?

Stuck at Home? What to See in the Night Sky this Month

In times of darkness and incertainty, opt for exploration of wonder in the skies.

The Coronavirus: What You Need to Know About the Virus

As the death tolls rise, Coronavirus is on the minds of people all over the world. Learn about this new virus and how we got here. Originally published: 2/20/2020 Updated: 3/9/2020

Last Call for the King of Planets

This month Jupiter is entering conjunction which means it's the last chance this year to catch a glimpse of the largest planet in our solar system.

Get Celestial with Lowell Observatory LIVE!

Our friends at Lowell Observatory are serving up our solar system on a platter live!