It's all to do with the light from the Sun and a blanket of air wrapped around Earth called the 'atmosphere'.
Physicists can use bright, hot lasers to slow atoms down so much that they measure -459 degrees Fahrenheit.
A simple chemical reaction turns the red pigment of beets into a new, nontoxic blue dye.
Gravity exists because the universe is full of 'stuff' – here's how it came to be.
Everything you can touch is made of molecules – but feelings, sound and light are something different.
When two proteins interact with each other they behave in their own molecular lives.
Chemists sure know how to party. And here is the proof. On October 23rd they celebrate their hallowed unit: the mole. Find out what that's all about.
Put simply, it's the outcome of a chemical reaction, which humans learned how to make some 400,000 years ago.
That pre-sleep herbal tea may be doing many people a lot of good.
Medicinal chemists are tweaking a natural molecule that can be a deadly poison – a modified version might work as a nonhormonal male contraceptive.
It's like one great big distillery up there.
Research on molecular machines won last year's Nobel Prize in chemistry. Now scientists have figured out a way to get these tiny molecules to join forces and collaborate on real work on a macro scale.
Explosive developments driving the tiniest engines in the world.
Getting tellurium and phosphorus to form a molecule is stupidly hard and not very glamorous. Here's why it's worth the effort.