In single-molecule spectroscopy typically only emission spectra are recorded. Here, the authors develop a technique to record single-molecule excitation spectra under ambient conditions, which is ...

Molecules transfer their kinetic energy to other molecules through conduction. When a fast-moving molecule hits a slower-moving molecule, the slower molecule speeds up (and turns more red) and the ...

Tell students that this is another model of a water molecule. In this model, color is used to show the polar areas of the water molecule. The negative area near the oxygen atom is red, and the ...

New ultrafast laser technology now at Miami University will help researchers and students better understand energy transfer processes in collisions between atoms and molecules — applicable in the ...

Scientists have identified two small RNA molecules which ensure that enough red blood cells are produced efficiently, by fine-tuning a number of different genes involved in this process.

While the presence of these molecules is not proof of ancient life on Mars, scientists say it shows we could detect chemical signatures of past life, if it ever existed.

A laser optical pulse (blue) enters from the left into the hollow-core fibre filled with nitrogen gas (red molecules) and, along propagation, experiences a spectral broadening towards longer ...

These molecules could have come from the breakdown of fatty acids that existed 3.7 billion years ago before being preserved in sediments laid down by an ancient lake on the Red Planet. While ...

The Curiosity rover detected the largest organic molecules to date on Mars, which may be fragments of fatty acids, or some of the chemical building blocks of life.

The molecules, while not a direct sign of life, still signal the existence of complex chemistry on the Red Planet.