Astronomers have announced a significant discovery: they have found molecular oxygen for the first time ever outside the Solar System. In a research published in The Astrophysical Journal, they noted ...

For the first time, astronomers have found molecular oxygen — the same gas humans need to breathe — in a galaxy outside the Milky Way. Oxygen is the third most common element in the cosmos, after ...

There are many levels at which a scientific question can be answered. An answer that is quite satisfying to a scientist from one discipline may be totally unsatisfactory to a scientist from another.