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Stormy Days & Gamma Rays

Lightning crackles across roiling skies—a visible display of a thunderstorm's energy. However, these storms produce more energy than we can see. Scientists have now used new gamma-ray imaging techniques to reveal invisible energy streaming out of these natural light shows. Learn how gamma rays relate to the electromagnetic spectrum and explore the relationship between wavelength and energy, all while drawing connections to weather phenomena.

Photoluminescent Bat Toes

Biologists didn't design their experiments looking for glow-in-the-dark feet, but sometimes scientific failures yield surprising discoveries. If glowing toes sound batty to you, learn how scientists illuminate the secrets of a flighty mammal while answering questions about the scientific process.

A Nuclear-Shmear Campaign

Love mayonnaise or hate it, physicists just put this contentious condiment to work. Scientists struggle to study the behavior of matter during the process of nuclear fusion. Learn how researchers overcame some of these obstacles: They used a condiment with some surprisingly similar characteristics. It also helped them answer questions about the value of models for illustrating scientific processes.

Egyptian hydraulics: Does this idea hold water?

How did the ancient Egyptians build the pyramids? It's an age-old mystery. A new study points to hydraulic engineering. But does this idea really hold water? Some experts in the field argue against new evidence being provided to support such claims. Learn how researchers use evidence to support claims while discussing the value of healthy skepticism in science.

Turning genes on and off

Scientists have been able to study genetic activity in an ancient woolly mammoth’s DNA, thanks to a new method. Learn about the research study and the preservation of the DNA while thinking through the implications of having certain genes turned on or off.

When atoms collide, new elements arise

Take note — there could soon be a new element on the block. By smashing atoms together, scientists have been expanding our periodic table of elements beyond what occurs in nature. Learn how scientists create them while answering questions and discussing how such innovations may help us in the future.

How Ötzi Got His Ink

When Ötzi, the mummified iceman, was discovered in 1991, researchers thought they knew how he got his ink. But new findings cast doubt on those assumptions. Learn about unconventional approaches to tattooing and answer experimental design questions, such as the importance of sample size to a scientific study and the difference between quantitative and qualitative evidence.

Overcooked & Outplayed

In this study, humans and AI worked together to score the win. But it’s the human partners that got played. Learn how some methods for training AI can also teach AI to influence human behavior, then answer questions about the potential implications of a future world in which AI sways human behavior.

Neutrino-detection issues? Time to tree-cruit!

Physicists propose that trees may help detect high-energy subatomic particles called neutrinos. Learn how Earth’s atmosphere alters these incoming high-energy subatomic particles from space. Then, explore how scientists could use this interplay to develop new ways to detect high-energy neutrinos.

The Tiny “Toad” of Many Crowns

Scientists in Brazil have just discovered a creature that claims two small but fierce titles: the smallest known vertebrate and the smallest known amphibian. This raindrop-sized vertebrate earned a rather misleading name for itself — the “flea toad.” Use metric units to make and compare measurements and learn the differences between toads and frogs before discussing the misleading nature of the amphibian’s name.

All eyes on the sun

On April 8, 2024, approximately 32 million people may have the opportunity to see a total eclipse of the sun. Astronomers predict this eclipse will put on quite a show — one of the most vivid in recent history. Learn how different factors of this solar eclipse will make it especially rare for both scientists and casual observers.

Drawn to a flame

That old saying, "drawn like a moth to a flame," needs a revision. Many flying insects may appear to be captivated by the glow of a nighttime lamp. But things aren't always what they seem. The reality turns long-held assumptions topsy-turvy. New findings suggest that flying insects are not attracted to the light at all, but actually turn their backs to it. Learn how new evidence challenges old theories and hypotheses while answering questions and discussing how the evidence from such studies supports conclusions.