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 ...

In this video, we explore the origins of the first atom, tracing back to the big bang, where immense energy condensed to form ...

The Bohr model, introduced by Danish physicist Niels Bohr in 1913, was a key step on the journey to understand atoms. Ancient Greek thinkers already believed that matter was composed of tiny basic ...

A new kind of quantum computer uses a high-resolution microscope to control the electron spins of titanium atoms. Plus, the Universe-mapping Euclid telescope fixes the wobble that threatened its ...

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 ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...