Accounts Quote by Neil deGrasse Tyson

“At the end of the day, no matter how confident we are in our observations, our experiments, our data, or our theories, we must…

— Neil deGrasse Tyson

In terms of the most astonishing fact about which we know nothing, there is dark matter and dark energy. We don't know what either…

— Neil deGrasse Tyson

“Most astrophysicists believe that the force holding stars and galaxies together—the thing that makes our whole universe work—comes from a theoretical substance we can’t…

— Blake Crouch

Dark matter and dark energy are two things we measure in the universe that are making things happen, and we have no idea what…

— Neil deGrasse Tyson

Dark matter is interesting. Basically, the universe is heavier than it should be. Theres whole swathes of stuff we cant account for.

— Talulah Riley

Dark matter is interesting. Basically, the universe is heavier than it should be. There's whole swathes of stuff we can't account for.

— Talulah Riley

“Another class of universal truths is the conservation laws, where the amount of some measured quantity remains unchanged no matter what. The three most…

— Neil deGrasse Tyson

Most gravity has no known origin. Is it some exotic particle? Nobody knows. Is dark energy responsible for expansion of the universe? Nobody knows.

— Neil deGrasse Tyson

We account for one-sixth of the forces of gravity we see in the universe. There is no known objects accounting for most of the…

— Neil deGrasse Tyson

So important is this dark matter to our understanding of the size, shape, and ultimate fate of the universe that the search for it…

— Vera Rubin

As an astrophysicist, my research work involves mapping dark matter, the elusive substance that accounts for about a quarter of our universe.

— Priyamvada Natarajan

“The most accurate measurements to date reveal dark energy as the most prominent thing in town, currently responsible for 68 percent of all the…

— Neil deGrasse Tyson