For the first time, the full biographical arc of a galaxy beyond our own has been reconstructed — not from light curves or morphological snapshots, but from the chemical ...

Dartmouth researchers have developed a cell phone-based tool that monitors tissue health by using a naturally occurring molecule to measure the oxygen level in cells. The tool could provide a simple ...

Plants constantly juggle oxygen inside their cells, but scientists have now discovered a surprising twist in how that balance works. Researchers at the University of Helsinki found that ...

Oxygen on exoplanets can be the result of simple chemical processes rather than biological ones.

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 ...