Why is the sky blue?
Why is the sky blue? Light at the blue end of the rainbow is scattered more efficiently than the other colors.…
Tag: question
How does the brain think?
Thinking builds neural networks, which is why practice improves performance. Francesco Carta fotografo/Moment via Getty Images Jennifer Robinson, Auburn University…
Exploring the Anunnaki Mythos: Origins, Theories, and Their Return
Exploring the Anunnaki Mythos: Origins, Theories, and the Question of Their Return. The Anunnaki, a group of deities in ancient…
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…
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,…
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.…
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…
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’…
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…
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…
How can you tell if something is true? Here are 3 questions to ask yourself about what you see, hear and read
Emotions can get in the way of knowing what’s true. Elva Etienne/Moment via Getty Images Bob Britten, West Virginia University…
Who invented music? The search for stone flutes, clay whistles and the dawn of song
Something people today have in common with civilizations past: a love of music. peepo/E+ via Getty Images Laura Dallman, University…
