What is dirt?
Dig into soil and you’ll find rock dust but also thousands of living species. ChristinLola/iStock/Getty Images Plus Brian Darby, University of North Dakota What is dirt?...
Can anyone make a citizen’s arrest? The history and legalities of catching criminals yourself
Can you detain someone you just saw break the law? Alan Thornton/The Image Bank via Getty Images Seth W. Stoughton, University of South Carolina and Caroline...
Training an animal? An ethicist explains how and why your dog − but not your frog − can be punished
Jon Garthoff, University of Tennessee Training an animal? An ethicist explains how and why your dog − but not your frog − can be punished People talk...
Aging is complicated – a biologist explains
While some people may be older in chronological age, their biological age might be much younger. FangXiaNuo/E+ via Getty Images Ellen Quarles, University of Michigan Aging...
Understanding the Double-Slit Experiment: A Simple Explanation
Understanding the Double-Slit Experiment: A Simple Explanation The Double-Slit Experiment is a famous experiment in physics that demonstrates a core principle of quantum mechanics: the dual...
Why do people have wisdom teeth?
Ariadne Letra, University of Pittsburgh and Seth M. Weinberg, University of Pittsburgh Curious Kids is a series for children of all ages. If you have a...
Why isn’t there any sound in space? An astronomer explains why in space no one can hear you scream
Matter in deep space is very spread out, which makes it impossible for any sound waves to travel. NASA, ESA, CSA, STScI Chris Impey, University of...
Is time travel even possible? An astrophysicist explains the science behind the science fiction
If traveling into the past is possible, one way to do it might be sending people through tunnels in space. by raggio5 via Pixabay Adi Foord,...
Why are US politicians so old? And why do they want to stay in office?
Donald Trump, left, and Joe Biden, both photographed on Nov. 2, 2023, are two of the three oldest men ever to serve as president. Trump: Brandon...
Are ghosts real? A social psychologist examines the evidence
Remember the old saying: Extraordinary claims require extraordinary evidence. David Wall/Moment via Getty Images Barry Markovsky, University of South Carolina Curious Kids is a series for...
How much time do kids spend on devices
Today, nearly all U.S. teens have a smartphone. MoMo Productions/Digital Vision via Getty Images David Rosenberg, Wayne State University and Natalia Szura, Wayne State University How...
Does chicken soup really help when you’re sick?
A bowl of chicken soup typically contains protein, vegetables and soothing broth. Westend61 via Getty Images Colby Teeman, University of Dayton Does chicken soup really help...
Why is space so dark even though the universe is filled with stars?
Why is space so dark even though the universe is filled with stars? This age old question has been dubbed Olbers’ paradox. John Moore via Getty Images...
Why does a plane look and feel like it’s moving more slowly than it actually is?
Without a point of reference, it can be hard to tell just how fast an airplane is traveling. Daniel Berehulak/Getty Images News via Getty Images Sara...
What happens if you need to pee while you’re asleep?
Your bladder can signal the brain when it’s full, even while you’re asleep. Happyphoton/iStock via Getty Images Jennifer Ahn, University of Washington Curious Kids is a...
There’s no age limit for politicians − as people live longer, should that change?
Mitch McConnell, Diane Feinstein and Joe Biden are all over 80 years old, joining a number of politicians who are staying in office well past their...
What is The Law of Attraction and Manifestation?
What is The Law of Attraction and Manifestation? The Law of Attraction and Manifestation is a popular concept in the New Thought and New Age movements,...
Does our minds create our own realities?
Does our minds create our own realities? The concept of “our minds creating our own realities” is often discussed in various philosophical, psychological, and metaphysical contexts....
What happens if someone dies in space?
An artist’s depiction of two astronauts on Mars. cokada/E+ via Getty Images Emmanuel Urquieta, Baylor College of Medicine What happens if someone dies in space? Curious Kids...
Why do voters have to pick a Republican or a Democrat in the US?
Voters often believe they only have two choices in American elections, even when multiple candidates appear on a ballot. OsakaWayne Studios/Moment via Getty Images Christopher Devine,...
How do trees die?
Eventually weather, pests and disease will take their toll, but the story doesn’t end there. Emanuel David / 500px via Getty Images Camille Stevens-Rumann, Colorado State...
Researchers turned superglue into a recyclable, cheap, oil-free plastic alternative
Researchers discovered a way to turn superglue into strong, clear plastic that can be made into many shapes. Allison Christy, CC BY-ND Allison Christy, Boise State...
Why does time change when traveling close to the speed of light? A physicist explains
Time gets a little strange as you approach the speed of light. ikonacolor/iStock via Getty Images Michael Lam, Rochester Institute of Technology Curious Kids is a...
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