If you could see an alien planet from Earth, you wouldn't necessarily need to look for cities. You could just check for oxygen in the atmosphere.
Scientists have found that mindfulness meditation, known as "Samatha Meditation," could be reducing the pain that people experience.
The Earth is made up of plenty of elements but Chromium is uncommon. This has scientists puzzled.
Why is it okay to bleach cotton cloth, but not wool?
Check any package of bacon, hotdogs, or cold cuts and chances are you'll find nitrites listed among the ingredients.
The bacteria take nitrogen out of the air and make it available to other living organisms in an amazing process.
Why doesn't the flame just continue to burn underneath the bell, no matter how flat you crush it? The answer is air.
Sugar cubes crumble and fall apart when they get wet. What causes sugar to dissolve?
Venus may appear to glow under moonlight but the planet also glows in infrared light.
You are heating up water and see bubbles form on the bottom of the pan. Is the water considered to be boiling?