It is so dominant (about 69 percent the total content of the entire cosmos) that dark energy quickly became a part of any discussions about the final end of the universe. (discovermagazine.com)
It's at the explanatory end of the universe, the last piece in understanding how the matter that makes up our everyday world works. (sciencenews.org)
Finally, it will tear the very fabric of space - time at the seams, marking the official end of the universe. (discovermagazine.com)