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

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 ...

Confining and rotating extremely cold atoms or molecules within atomic “Ferris wheels” made from laser light could test ...

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, ...

New device emits photons in telecom fiber band from the start, so it avoids a separate converter that can waste photons.

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We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen environmental ...