The universe began with a vast ... These explosions, called supernovae, are important to the evolution of galaxies because they distribute all the common elements such as oxygen, carbon, nitrogen ...

Lines then appear in this spectrum in particular patterns depending on the elements in the light source ... Some view Hubble's discovery as the most important event in astronomy in the century.

"Hydrogen is the most common element in the universe, so H meeting H is still the key," co ... "H is a small molecule that might not be as important to us on Earth as water or proteins, but it's a ...

Stars form in regions of space known as stellar nurseries, where high concentrations of gas and dust coalesce to form a baby ...

That’s what I was most interested in, because those are some of ... because it really is like a particular fingerprint of particular elements in the gas in a galaxy.” The universe started with just ...