Why did they form at that time? Astronomers know from observing distant exploding stars that the size of the universe has ...

What color is an atom? Since atoms are smaller than the wavelength of visible light, we can’t see them directly - but they ...

MIT researchers have devised a new molecular technique that lets electrons probe inside atomic nuclei, replacing massive particle accelerators with a tabletop setup. By studying radium monofluoride, ...

Trapping ultracold atoms with laser light let researchers magnify and then image the wave functions of atoms that were previously too close together to look like anything but a blob ...

If you think of a single atom as a grain of sand, then a wavelength of visible light—which is a thousand times larger than ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Here’s what you’ll learn when you read this story: Studying quantum phenomena—such as ...

A type of hydrogen that doesn't interact with light could explain how long neutrons live and reveal the identity of the ...

Imagine a knot so small that it can’t be seen with the naked eye. Then think even smaller. Chemists have tied together just 54 atoms to form the smallest molecular knot yet. Described January 2 in ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. Richard Feynman, a famous theoretical physicist ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Stephen L. Levy, Binghamton University, State University of New York (THE CONVERSATION ...