Why are some black holes bigger than others? An astronomer explains how these celestial vacuums grow
Pictures of black holes have a white outline around them when photographed, due to one of black holes’ unique and key features.
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When was talking invented? A language scientist explains how this unique feature of human beings may have evolved
A language scientist explains that talking was never invented but has evolved over hundreds of thousands of years.
How much sleep do you really need?
Getting a good night’s sleep on a regular basis can help you do well in school or at work. It might even make you better-looking.
Want better child care? Invest in entrepreneurial training for child care workers
When early childhood education providers become more entrepreneurial, the quality of their programs improves, research shows.
How do you start your own company?
There are five basic things to address while starting your own company: Need, idea, product, setup and market.
Why are moths attracted to light?
Moths and insects cluster around lights at night. Why?
What is hydroelectric energy and how does it work?
How does flowing water make electricity? An engineer explains hydroelectric generation.
Can you cry underwater?
An ophthalmologist explains how important tears are to keeping your eyes feeling good and working well – whether you’re on dry land or swimming in a body of water.
Why are some mushrooms poisonous?
Poison can be a deadly defense that helps a mushroom make sure its spores are spread to new places to grow into baby mushrooms.
How does your brain wake up from sleep?
The mystery of how the brain creates consciousness still puzzles scientists, but the mechanics of waking up are starting to be understood.
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