Flat, positively curved, or negatively curved ... what is the true shape of the universe? Scientists use many indirect measurements to base their theories on the shape of the universe. Using an installment from the SciShow Space series,...

Start to finish, the first satellite was an 84-day project. Follow the process in a video lesson presentation from the SciShow Space series. The narrator explains the decision-making process and structure of the satellite as well as the...

Could there really be over 200 billion galaxies? It turns out the number may be closer to two trillion galaxies! A video presentation discusses the existence of galaxies in the universe. The narrator explains how scientists make...

The oldest known planet is more than 12 billion years old! A video lesson explains how unique the planet is and why it intrigues scientists. The instructor describes the recent discovery of the planet and the actual data collected that...

Back in the day, all birds had the ability to fly. Why would evolutionary adaptations take that away from some species? A video presentation discusses the cost of having the ability to fly and why that feature may not be ideal for...

Quarks have some interesting features—including their names! Young scholars learn about up, down, strange, charming, bottom, and top quarks in an engaging video presentation. The narrator begins with an overview of molecules and atoms,...

Meningitis is scary and life-threatening—but preventable. Learn the science behind the disease and how to prevent contraction in a three-part lesson. Scholars first view a video describing the characteristics of meningitis and how people...

Animals don't read clocks, so how do they know when it is time for eating, sleeping, and other cyclical needs? Viewers watch an animation of the genes and the molecular clocks inside most mammals. They compare the difference in wild...

While most strains of E. coli exist harmlessly inside our digestive tracts, some strains cause serious illness and even death. Watch the infection strategy of E. coli as it attacks a cell. The animation shares both what happens inside...

Bacteria share the best gifts: genetic code offering drug resistance. As drug resistance becomes more common, scientists share how the process occurs with a brief animation. Viewers see a drug-resistant bacteria use conjugation to pass...

More than 144 sub-types of influenza A exist today. How is that possible? Scholars view an animation of a cell being attacked by two different strains of the flu. Then the strains mix, creating an entirely new third strain. The idea of...

Scientists discovered multiple cryovolcanos over two billion years old! SciShow Space introduces the discovery of more than 30 cryovolcanoes on Ceres, some a relatively young two million years old. They then learn about #Flarewell and...

Do you ever feel like scientists have more fun naming new discoveries than actually finding them? Discover the fun they had while learning about the extremely scientific concepts of nuclear pasta, gnocchi, spaghetti, waffles,...

No matter where you stand on the controversial topic of genetic engineering, the science that makes it possible is extraordinary. An animated video describes a process of genetic engineering involving bacteria. The quick...

Sometimes in science mysteries remain mysteries for a long time! The discovery of diffuse interstellar bands happened nearly 100 years ago, yet it took until 2015 for scientists to understand a single band. Pupils learn about the...

Many who enjoy YouTube science videos recognize Brit, the host, from her previous work on SciShow. Learn more about her many science degrees and why she started her show.  Brit shares the area she where she currently lives and...

When determining intelligence in animals, scientists use a variety of tests that reveal the animal's ability to use tools, recognize themselves, and communicate. The final video in the Biodiversity series explores why some species, such...

The first video in a four-part series on Biodiversity addresses the three levels of biodiversity from genes to ecosystems. Then, it details the three dimensions and the three uses for biodiversity.

As the rates of skin cancer rise to become the most common type of cancer in the United States, scientists directly relate sunscreen usage to skin cancer prevention. Doctors research exactly how ultraviolet light changes cells. Viewers...

The sky appears blue, but why? Humans see the world through the visible light spectrum, but the light spectrum is much larger than what the eye sees. Camera lenses allow people to view the world in ultraviolet, and the changes might...

Many believe dinosaurs were much larger than animals of today, but even the biggest dinosaur was only half the size of the average adult blue whale. Understanding why animals appear to be getting smaller starts with a discussion of...

The word camouflage was first found use in English in the 1917 edition of Popular Science magazine. Camouflage, along with many other variations, star in the second video in a four-part series about adaptations. Join the virtual...

Is today's food less nutritious? Veritasium explores the research and the reasons some scientists now consider food nutrient-deficient. The video also considers possible causes and whether the human population should be concerned.

More than 50 billion cells in your body die every single day. While this sounds traumatic, the human body continuously produces new cells to replace them. A short video shares animations of the process of cell division or mitosis and...