All Stories
- 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.
- Tech
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.
By Shi En Kim - Chemistry
Chemistry solves a French royal mystery
Ink analysis reveals the hidden words of Marie Antoinette's letters and who tried to hide them.
- Environment
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.
- Plants
Scientists Say: Phloem
Phloem is tissue that delivers food, made in leaves during photosynthesis, to the rest of a plant.
- 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.
- Animals
Bloodthirsty vampire bats prefer drinking with friends
Vampire bats were known to bond with others in their roost. Now, research suggests bonded bats often drink blood from animals together.
- Brain
Ask the experts: How to create a top-notch science fair project
Five finalists in the Broadcom MASTERS middle-school competition reveal how they created nationally competitive projects.
- Planets
Pluto is no longer a planet — or is it?
In the 15 years since Pluto lost its status as a planet, some scientists continue to use whatever definition works best for them.
- Materials Science
Bacteria make ‘spider silk’ that’s stronger than steel
Part spider silk, the material is better than what some spiders make. Researchers think it might make the basis for surgical threads or unusually strong fabrics.
By Manasee Wagh - Animals
Let’s learn about the creatures of Halloween
Check out the real-life vampires and zombies of the animal kingdom, and learn why people think ghosts and mummy curses are real.