Sound moves faster in water…? We may need fish to get us to Mars…? There was a robot in the 15th century…? Here are fun facts ...

Science is amazing, fascinating, and, if we’re being honest, sometimes absolutely terrifying. While we usually hear about cool breakthroughs and feel-good discoveries, there’s a darker side of science ...

Talk about a bizarre feature of the human body: If you happened to swallow a razor blade, your stomach acid would dissolve it. Acids are ranked on a scale from zero to 14—the lower the pH level, the ...

Meghan Walbert is Lifehacker's Managing Editor. She has a degree in journalism and has worked at Lifehacker as a writer and editor since 2018, covering parenting, foster care, online child safety, and ...

This image shows our fragile planet Earth, with clouds, ocean, land masses, and the border between the atmosphere and space visible. The most remarkable fact about the Universe is that is can be ...

Perseverance is currently looking for water and other cool stuff on Mars, but back in 2011, astronomers found an enormous water vapor cloud some 12 billion light-years from Earth. The cloud is the ...

The natural world rarely behaves the way we expect. Physics bends intuition. Biology ignores neat categories. Space refuses to be reasonable. Some facts sound like they were invented for a science ...

After years of getting your emails and phone calls, we know that SciFri listeners are in the 99th percentile when it comes to nerdy knowledge. We’re putting your fact retention skills to the test with ...