All Stories
- Earth
Let’s learn about auroras
A gust of charged particles from the sun called the solar wind lights up auroras on Earth — and on other planets.
- Materials Science
Analyze This: Hardened wood can make sharp steak knives
Researchers treated wood to make it hard and dense. Out of it, they carved sharp knives and nails that could substitute for ones made of steel.
- Materials Science
These colorful butterflies were printed with transparent ink
Clear ink creates a whole rainbow of colors when printed in precise, microscopic patterns. This phenomenon is known as structural color.
- Earth
Scientists Say: Convection
Convection is a process that transfers heat through the movement of liquid or gas.
- Humans
A growing share of teens feels lonely at school
Data from kids in 37 nations links this to use of cell phones and the internet.
- Health & Medicine
Psychology shines light on the harm racism can do
All forms of racism are harmful. Research sheds new light on the biases behind racism and the many ways it can affect our mental health.
- Health & Medicine
What to know as Pfizer’s COVID-19 vaccine rolls out for kids under 12
After a trial in which no unusual side effects were reported, and approval by the FDA and CDC, kids ages 5 to 11 will be able to receive the COVID-19 vaccine.
- Chemistry
Scientists find a ‘greener’ way to make jeans blue
When coated onto jeans, a plant-based polymer reduces water and cuts the amount of toxic chemicals needed.
- Chemistry
Chemistry solves a French royal mystery
Ink analysis reveals the hidden words of Marie Antoinette's letters and who tried to hide them.
- Chemistry
Everyday plastics can pollute, leaching thousands of chemicals
Plastic bags and containers leach potentially toxic chemicals into both food and water, but researchers yet don’t know how they might affect health.
- Tech
Did Facebook put Instagram profits ahead of teen safety?
Former employee said Facebook (now Meta) ignored its own research on Instagram risks to teens’ mental health. We look at the issues and what you can do.
- Planets
NASA’s Perseverance rover grabbed its first Martian rocks
Two finger-sized pieces of stone drilled from a basalt rock are the first bits of Mars ready to be brought to Earth.
