All in Cosmology
The final chapter in our search for answers to the questions; what are the ripples and what are they rippling through?
The quest for answers continues...
We all hear the phrase "ripples in spacetime", but wtf does it mean? What are the ripples and what are they rippling through? Let's try to answer those pertinent questions here.
In this post, we look at the nature of dark energy. Is it fixed? Is it dynamical? Whatever it is, it is driving the accelerating expansion of our universe, and if we want to know its fate, we must come to know its nature.
The idea of a multiverse is truly mind boggling. The idea of an eternal multiverse that is eternal both past and future... that's even more confounding. But seeing it all through the many worlds perspective of quantum mechanics is perhaps one of the most fascinating things we can endeavor.
Scientists using the VLT survey telescope in Chile have inferred, by looking at how light 'bends' around superstructures, that dark matter appears less dense, and less clumpy than previously determined by imaging done by the WMAP & Planck satellites.
There are elementary particles that "carry" fundamental forces; they are the communicators of force. Gluons carry the nuclear strong force, photons carry the electromagnetic force, the W & Z bosons carry the weak force... awww. But what particle links our observable universe with the mysterious dark sector? Could a spin-1 gauge boson be the communicator for dark matter?
Could dark matter be behind the mass extinction event that wiped out most of the dinosaurs?