Respuesta :
The other gas which the article mentioned is Helium gas.
What is Compression?
This refers to the squeezing or shortening of a substance which is most often done by increasing the temperature.
The information scientists hope to gain by compressing this gas into a solid is by studying the molecular structures and using it in the production of other substances which is why Nitrogen and Helium are the gases being studied in this scenario.
Read more about Compression here https://brainly.com/question/17266589