Oxygen began entering Earth's oceans around 2.32 billion years ago, and shallow seas followed within a few million years.

Chemists have achieved a new feat in the realm of chemical design and synthesis: They've helped create the first example of a synthetic molecule, with an asymmetric oxygen atom as its centerpiece, ...

Oxygen plays a crucial role for all living organisms on Earth. Researchers at the University of Gothenburg have now found evidence that double ionised sulphur dioxide contribute to the formation of ...

Venus' atmosphere is notoriously hellish. Its air is corrosive and hot enough to melt lead. Its billowing clouds are poisonous to humans. Sometimes, it rains acid. But researchers just discovered that ...

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 ...