The problem is that we do not see dark energy because it doesn't emit light, so we cannot measure it. http://dld.bz/HDrF cosmos @NSF @NASA

Dark energy, purported to make up 73% of the Universe, is proposed as the source of the ongoing expansion of the cosmos. http://dld.bz/HDrF

Continued acceleration would lead to an ever less dense and colder universe. [dark energy] http://dld.bz/HDrF @GuardianScience cosmos @BBC

The problem is that we do not see dark energy because it doesn't emit light, so we cannot measure it. http://dld.bz/HDrF cosmos @NSF @NASA

So what does this have to do with the possibility that a multiverse exists? [Brian Greene: The Hidden Reality] http://dld.bz/H4Pb cosmos

So what does this have to do with the possibility that a multiverse exists? [Brian Greene: The Hidden Reality] http://dld.bz/H4Pb cosmos

Dark energy, purported to make up 73% of the Universe, is proposed as the source of the ongoing expansion of the cosmos. http://dld.bz/HDrF

Astronomers have been trying to measure the density of matter in the cosmos. [Brian Greene: The Hidden Reality] http://dld.bz/H4Pb

Astronomers have been trying to measure the density of matter in the cosmos. [Brian Greene: The Hidden Reality] http://dld.bz/H4Pb

Brian Greene has studied string theory for the past 25 years. [The Hidden Reality] http://dld.bz/H4Pb physics cosmos nonfiction books