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6 simple machines: Making work easier
Humans have invented six devices that combine to make work easier. These six simple machines are the wheel and axle, the lever, the...
SpaceX launches Italian Earth-observation satellite, lands...
A Falcon 9 rocket topped with the CSG-2 radar satellite lifted off from Cape Canaveral Space Force Station Monday (Jan. 31) at 6:11...
Pendants from Holocaust victims found near gas chamber...
Archaeologists have found three pendants from Holocaust victims at the Sobibor Nazi death camp in Poland over the past decade.
What is the grandfather paradox?
An explanation of the grandfather paradox, and how it might be solved via the physics of time travel
'Wonderfully-shaped feces' found inside ancient fish skull....
About 9 million years ago, marine worms burrowed into a dead fish's head and left behind a skull full of fossilized poop.
What is a scientific theory?
A scientific theory is based on careful examination of facts. It is much different from the non-scientific use of the word.
Do other viruses have as many variants as SARS-CoV-2?
Is COVID-19's rapid evolution unusual, or do other viruses have as many variants as this coronavirus?
Do we live in a simulation? Here's why we may never know.
Does the simulation hypothesis offer a compelling argument, or is it just interesting food for thought? Let's find out.