Why do we put cut flowers in water? Does it really help?
Earth, with its habitable conditions, may be incredibly rare.
The molecules at the surface of a body of water make a film under tension.
Why do airplanes sometimes leave long white contrails behind?
You've seen TV ads lauding the slurping powers of paper towels; while we won't make any exorbitant claims about them, we're going to discuss how they work.
Fogbows are created in much the same way as normal rainbows are. The main difference is the size of the water droplets which affect the light's refraction.
Even though it's three times as far from the sun as Earth, Ceres may have liquid water.
A camel draws on a whole range of adaptations so that it can travel hundreds of miles, over several days, without stopping to drink.
Is your houseplant moving or is that just an optical illusion?
Why does blowing on hot soup help to cool it off? The answer is evaporation.