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 ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Stay sharp and learn something new every day or stock up on knowledge for the next 105 days with these ...

Even if you weren’t someone who got excited about science class in school, now—as an adult—it’s hard not to be amazed by science facts. Seriously, just stop for a minute and think about what both the ...

The NASA Hubble Space Telescope, which is hundreds of miles above the Earth, has been taking incredible pictures that help with future studies and research. But to learn more about the telescope. Here ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Join the experts at the Good Housekeeping Institute and get stoked about science! Discover incredible ...

Did You Know: Water is made up of H₂O molecules that are polar, meaning they have a slightly positive side and a slightly negative side. This polarity creates strong cohesion, causing water molecules ...